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CLASS 482,	EXERCISE DEVICES
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SECTION I - CLASS DEFINITION

This class provides for apparatus intended to be operated by a human user for the purpose of: (a) facilitating the conditioning or developing of a muscle of the user by repetitive or continuous activity of the user or, (b) participating in a track, field, gymnastic, or athletic activity, unless by analogy of structure or by other function the apparatus is classified elsewhere.

SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS

Apparatus claimed for measuring the amount of force exerted while exercising with a Class 482 type exercise apparatus is proper for Class 482. Apparatus intended for use only in measuring the strength of an individual for a testing purpose or for measuring the strength of an individual while exercising but not claiming any positive exerciser structure is found elsewhere. See References to Other Classes, below. A reference claiming a diagnostic or other exercise measurement type feature, e.g., pulse monitoring, repetition counting, respiratory function, etc., in addition to strength testing or claiming a feature related to monitoring stamina would generally be classified in this class (482) unless a placement controlling claim directed solely to use as a diagnostic device is present thus making it proper for classification elsewhere. See References to Other Classes, below.

Patents placed into this class in accordance with part (a) of this class definition clearly show that the disclosed purpose is to condition or develop the user"s own body through active user involvement, i.e., not caused by external stimulation. Apparatus operated by a person or machine to move the body of the user, i.e., passive user involvement, for a similar purpose are classified as originals elsewhere. See References to Other Classes, below.

SECTION III - SUBCLASS REFERENCES TO THE CURRENT CLASS

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SECTION IV - REFERENCES TO OTHER CLASSES

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SUBCLASSES

1	HAVING SPECIFIC ELECTRICAL FEATURE:
	This subclass is indented under the class definition.  Subject matter wherein the apparatus includes a particular electrical component or arrangement, e.g., operating, controlling, monitoring, or indication circuitry, etc. (1) Note. To be proper for placement in this subclass as an original classification, the exercise equipment must have a significantly claimed electrical feature. A mere recitation of a named electrical feature such as "motorized", "electric", "electrically powered", "electrically monitored", "electrical indicator", or "lighted", would be excluded from this subclass if no further details are claimed. A cross reference copy based upon a more complete disclosure could, of course, be provided. (2) Note. The electrical feature may include a computer or computer related circuitry, display, feedback, or software.

2	Electrical energy generator:
	This subclass is indented under subclass 1.  Subject matter wherein the apparatus transforms input energy of the user into electrical power. (1) Note. The electrical energy generated may be either alternating or direct current, i.e., A.C. or D.C. The ultimate use of the electrical energy generated need not be claimed.

3	Pace setting indicator:
	This subclass is indented under subclass 1.  Subject matter wherein the electrical component or arrangement supplies a periodic signal for informing the user of a desirable rate of activity. (1) Note. A pace setting indicator is often called a "pace setter" although no structure for actually controlling the rate of activity of the user or the equipment is provided. SEE OR SEARCH THIS CLASS, SUBCLASS: 6, and 7, for circuitry which regulates the rate of movement of the apparatus.

4	Equipment control:
	This subclass is indented under subclass 1.  Subject matter wherein the electrical component or arrangement regulates some parameter of the apparatus.

5	Amount of resistance:
	This subclass is indented under subclass 4.  Subject matter wherein the electrical component or arrangement quantitatively regulates a force applied in opposition to the user. (1) Note. The amount of resistance may be controlled directly by the user or via a feedback system.

6	Regulates rate of movement:
	This subclass is indented under subclass 5.  Subject matter wherein the force applied in opposition to the user by the apparatus is used to govern the speed, or change in speed, i.e., acceleration, of the apparatus. (1) Note. The rate of movement of the exercise equipment may be controlled directly by the user or via a feedback system by varying the amount of resistance. This subclass also includes exercise equipment wherein any of a range of operating rates may be selected by a user manipulating an electrical control which then varies the amount of resistance. SEE OR SEARCH THIS CLASS, SUBCLASS: 7, for electrical equipment controlling the rate of movement of the apparatus in a manner other than by varying the amount of resistance.

7	Rate of movement:
	This subclass is indented under subclass 4.  Subject matter wherein the electrical component or arrangement regulates the speed, or change in speed, i.e., acceleration, of the apparatus. (1) Note. The rate of movement of the exercise equipment may be controlled directly by the user or via a feedback system. This subclass also includes exercise equipment wherein any of a range of operating rates may be selected by a user manipulating an electrical control. SEE OR SEARCH THIS CLASS, SUBCLASS: 6, for electrical equipment regulating the rate of movement of the apparatus by varying the amount of resistance opposing the user.

8	Monitors exercise parameter:
	This subclass is indented under subclass 1.  Subject matter wherein a conditioning, developing, track, field, gymnastic, or athletic feature is measured or indicated by the electrical component or arrangement when the apparatus is operated by the user. (1) Note. The exercise parameter being monitored may include features such as the amount of work being done, force being exerted, repetitions completed, distance traveled, etc. SEE OR SEARCH CLASS: 73,  Measuring and Testing,   particularly subclasses 379.01+ for devices for measuring and testing of muscular strength. See Class Definition, (2) Note. 340,  Communications: Electrical,   particularly subclasses 500+ for an electrical condition responsive indicator and subclasses 815.4+ for an electrical visual indicator, per se. 600,  Surgery,   subclasses 481+ for apparatus used for the medical evaluation of the cardiovascular condition of a living body by a diagnostician. 700,  Data Processing: Generic Control Systems or Specific Applications,   subclasses 91 through 93for computer analysis, management, monitoring, or scoring of a contest or contestant not otherwise provided for.

9	To create or modify exercise regimen:
	This subclass is indented under subclass 8.  Subject matter wherein the measurement or indication is used by the electrical component or arrangement to establish or change a system of (1) conditioning or developing of the muscle of the user or (2) participation in the track, field, gymnastic, or athletic activity.

10	FOR HEAD OR NECK:
	This subclass is indented under the class definition.  Subject matter wherein significance is attributed to conditioning or developing a muscle found in the region above a shoulder of the user, i.e., a head or neck muscle.

11	Face (e.g., jaw, lip, etc.):
	This subclass is indented under subclass 10.  Subject matter wherein significance is attributed to conditioning or developing a muscle found on a front part of the head of the user between the top of the forehead and the bottom of the chin, i.e., a face muscle.

12	FOR THRUSTING A POINTED WEAPON (E.G., A FENCING FOIL, ETC.) OR SIMULATION THEREOF:
	This subclass is indented under the class definition.  Subject matter wherein significance is attributed to conditioning or developing a muscle employed while manipulating an instrument with a tapered end or an imitation thereof, which is shoved, tapered end foremost, towards an opponent. (1) Note. This subclass provides for an exercise device involving thrusting apparatus such as a fencing foil, bayonet, spear, or similar piercing weapon or a simulation of such a weapon. SEE OR SEARCH CLASS: 30,  Cutlery,   for a cutting implement such as a knife, foil, sword, or spear, per se. 42,  Firearms,   particularly subclass 86 for a firearm combined with a bayonet. 463,  Amusement Devices: Games,   particularly subclass 47.1 for fencing game apparatus and subclasses 47.2+ for a striking type of weapon for use on a human being (e.g., a police club, billy, etc.), which weapon being often used in a thrusting manner.

13	FOR IMPROVING RESPIRATORY FUNCTION:
	This subclass is indented under the class definition.  Subject matter wherein significance is attributed to conditioning or developing a muscle required for breathing or using the lungs. SEE OR SEARCH CLASS: 600,  Surgery,   subclasses 538+ for a respiratory exercise device which includes a quantitative indicator of breath flow or lung capacity disclosed as a diagnostic device used for medical evaluation of a living body by a diagnostician.

14	FOR TRACK OR FIELD SPORT:
	This subclass is indented under the class definition.  Subject matter wherein the apparatus is related to an athletic activity involving a measured running, jumping, or throwing event, i.e., a track or field sport. (1) Note. The athletic activities known as field sports were originally performed in an open field, although some of such activities are now performed in a closed arena. Wherever performed, however, they include such measured activities as running over a distance, jumping over one or more barriers or over a distance, or throwing any of various pieces of named equipment. The structural differences between the equipment found in each of the named subclasses are not necessarily large differences, and equipment intended for a particular activity could be used for a different purpose; but the differences are significant when considered in light of the special requirements peculiar to each of the named activities for which the equipment is intended to be used. SEE OR SEARCH THIS CLASS, SUBCLASS: 74, for a device related to jogging in general, i.e., not related to running over a measured distance in a track or field sport. SEE OR SEARCH CLASS: 273,  Amusement Devices: Games,   particularly subclasses 441+ for a game apparatus dealing with physical ability. 472,  Amusement Devices,   for an amusement device in general and particularly subclasses 85+ for a race track or accessory therefor, subclasses 92+ for a surface or enclosure for an athletic or exhibition event and subclass 136 for an amusement building or part thereof.

15	Jumping, vaulting, or hurdling:
	This subclass is indented under subclass 14.  Subject matter wherein the apparatus is related to an event in which the user springs or leaps clear of the ground or other support by a sudden muscular effort. (1) Note. Included under this subclass is structure related to a landing pit or pad used when jumping, vaulting or hurdling.

16	Crossbar or support therefor:
	This subclass is indented under subclass 15.  Subject matter wherein the apparatus includes (1) an elongated horizontal member over which the user leaps or (2) structure for holding the member above the ground or a floor. SEE OR SEARCH THIS CLASS, SUBCLASS: 25, for a vaulting horse over which a user may acrobatically jump.

17	Including height adjustment feature:
	This subclass is indented under subclass 16.  Subject matter wherein the apparatus is provided with structure whereby the vertical distance between the ground or floor and the horizontal member may be varied.

18	Vaulting pole or stop:
	This subclass is indented under subclass 15.  Subject matter wherein the apparatus includes (1) an elongated slender rod intended to help a user thereof leap into the air or (2) a member, stationary with respect to the ground, intended to receive one end of the rod as the user is thereby helped to leap. (1) Note. The user is usually vaulting over a horizontal bar. SEE OR SEARCH THIS CLASS, SUBCLASS: 33, for a structurally similar flexible pole secured to the ground and used for gymnastic exercise.

19	Starting block for runner:
	This subclass is indented under subclass 14.  Subject matter wherein the apparatus includes a member securable to the surface of an athletic track for use as an abutment to facilitate a fast start from a starting line by the user in a foot race. (1) Note. The starting block may permit quick disconnection and removal thereof from the track by a person other than the runner using it, thus helping to avoid any obstruction to the runner in a multilap event. SEE OR SEARCH THIS CLASS, SUBCLASS: 74, for a jogging accessory used when not running over a measured distance in a track or field sport.

20	Throwing:
	This subclass is indented under subclass 14.  Subject matter wherein the apparatus is related to an event in which an object is flung or hurled by the user. (1) Note. Included in this subclass is an elongated, spearlike object, e.g., a javelin, an elongated rope or chain having at one end thereof a relatively heavy object, e.g., a hammer, etc., and a ground or floor supported member used to limit foot placement when throwing the object, e.g., a toe board, etc.

21	Discus:
	This subclass is indented under subclass 20.  Subject matter wherein the flung or hurled object is a circular plate having a diameter that is relatively large compared to its thickness, i.e., a discus.

22	Shot-put:
	This subclass is indented under subclass 20.  Subject matter wherein the flung or hurled object is a heavy spheroid, i.e., a shot. SEE OR SEARCH CLASS: 473,  Games Using Tangible Projectile,   for a ball used in a game or sport, particularly subclasses 52+ for a ball used in the game of billiards or pool, subclasses 125+ for a ball used in the game of bowling, subclasses 280+ for a projectile used to practice for the game of golf, subclasses 351+ for a golf ball, subclasses 422+ for a projectile used to practice or train for a playing field or court game, and subclasses 569+ for a game projectile (often a ball), in general.

23	GYMNASTIC:
	This subclass is indented under the class definition.  Subject matter wherein significance is attributed to the use of the apparatus for an acrobatic purpose by the user. (1) Note. The terms "gymnastic" and "acrobatic" have come to denote and describe various pieces of equipment such as a trapeze, bar, vaulting horse, diving board, trampoline, etc., that are used in physical activities known by similar names. These activities are characterized by extreme movements of the user, who uses the equipment as a fulcrum or starting area to launch bodily through space, swing therefrom, or perform other such physical activity thereon. The significance of the apparatus is more in the activity for which the apparatus is used than in the structural differences between the apparatus (see the Class Definition, (1) Note). SEE OR SEARCH THIS CLASS, SUBCLASS: 109, for a club type exercise device which may be used for juggling. SEE OR SEARCH CLASS: 273,  Amusement Devices: Games,   particularly subclasses 441+ for a game apparatus dealing with physical ability.

24	Trapeze or rings:
	This subclass is indented under subclass 23.  Subject matter wherein the acrobatic apparatus is either (1) a short, horizontal, swingable bar suspended at each end by a flaccid strand, e.g., a rope, etc., or (2) a pair of annular objects each suspended by a flaccid strand, e.g., a rope, etc., about which the user may move in an acrobatic manner. SEE OR SEARCH THIS CLASS, SUBCLASS: 143+, for a suspension device from which the user may freely hang. SEE OR SEARCH CLASS: 472,  Amusement Devices,   particularly subclasses 118+ for an amusement swing.

25	Vaulting or pommel horse:
	This subclass is indented under subclass 23.  Subject matter wherein the acrobatic apparatus is (1) a supported body used for jumping over or for another acrobatic purpose, i.e., a vaulting horse or (2) a supported body with a pair of handles mounted thereon for an acrobatic purpose, i.e., a pommel horse. SEE OR SEARCH THIS CLASS, SUBCLASS: 16+, for a track or field sport in which a user jumps, vaults, or hurdles over a crossbar. 34, for a bar or rope for balancing upon. 38+, for a horizontal bar used for a gymnasts purpose.

26	Projector:
	This subclass is indented under subclass 23.  Subject matter wherein the acrobatic apparatus is used to thrust the user toward other acrobatic apparatus or into the air to help enhance movement by the user, e.g., in somersaulting, flipping, diving, bouncing, etc. SEE OR SEARCH CLASS: 182,  Fire Escape, Ladder, or Scaffold,   subclasses 137+ for a fire escape type body catcher having similar structure.

27	Trampoline:
	This subclass is indented under subclass 26.  Subject matter wherein the acrobatic apparatus employs a strong, taut, flexible sheet of resiliently supported material to thrust the user into the air usually in a bouncing manner. (1) Note. Jogging trampolines are included under this subclass. SEE OR SEARCH CLASS: 114,  Ships,   subclass 61.23 for a multiple hull ship with a trampoline-type deck.

28	Having foldable frame:
	This subclass is indented under subclass 27.  Subject matter wherein the flexible sheet of material is resiliently supported on a framework which can be bent over for more compact storage of the apparatus or for use of the apparatus in a different manner.

29	With disparate structure:
	This subclass is indented under subclass 27.  Subject matter wherein an element, not directly related to the resiliently supported flexible sheet type apparatus or its support structure, is additionally provided for use therewith or as an enhancement thereof.

30	Spring board:
	This subclass is indented under subclass 26.  Subject matter wherein the thrusting acrobatic apparatus is a thin, elongated, planar member secured near one end and cantilevered outwardly therefrom for propelling the user by employing either the resilient material of the planar member itself or a separate resilient element associated therewith.

31	Spring external to board:
	This subclass is indented under subclass 30.  Subject matter wherein the thin planar member is provided with a separate resilient element to produce its thrust.

32	Movable fulcrum:
	This subclass is indented under subclass 30.  Subject matter wherein the thin planar member pivots or bends about a support which is repositionable at plural locations between the secured end of the thin planar member and its cantilevered end to vary the amount of cantilever.

33	Tower or pole for swinging upon:
	This subclass is indented under subclass 23.  Subject matter wherein the acrobatic apparatus is an upright, elongated, slender framework or rod with its bottom end held in place while its opposite end serves as a support for the user and is capable of oscillating back and forth as desired by the user. (1) Note. A tower or pole used for swinging upon with its bottom end held in place by another person is proper for this subclass. SEE OR SEARCH THIS CLASS, SUBCLASS: 18, for a structurally similar flexible pole used to help launch a pole vaulter over a high bar.

34	Bar or rope for balancing upon:
	This subclass is indented under subclass 23.  Subject matter wherein the acrobatic apparatus is an elongated, solid or flaccid, underlying member on which the user attempts to support and maintain the center of gravity of his/her body in a state of equilibrium.

35	Play area climbing or traversing arrangement (i.e., for use by children):
	This subclass is indented under subclass 23.  Subject matter wherein the acrobatic apparatus is a structure mounted on a playground or floor for ascending, descending, or moving laterally upon by a juvenile user for his/her enjoyment. (1) Note. The combination of a play area climbing or traversing arrangement with a seesaw, slide, or swing is proper for this subclass where significance is attributed to the climbing or traversing structure. A mere ladder, set of steps, etc. used to climb onto a slide is not considered significant under this subclass. SEE OR SEARCH THIS CLASS, SUBCLASS: 37, for acrobatic apparatus which a user of any age may ascend or descend upon primarily by using an arm or hand. SEE OR SEARCH CLASS: 472,  Amusement Devices,   particularly subclasses 106+ for a seesaw, subclasses 116+ for a slide, or subclasses 118+ for a swing, used for an amusement purpose.

36	Having upright array of horizontally extending elements:
	This subclass is indented under subclass 35.  Subject matter wherein the structure for ascending, descending, or moving laterally upon includes a relatively vertical group of runglike components supported in a position perpendicular to vertical, i.e., horizontal. SEE OR SEARCH CLASS: 472,  Amusement Devices,   particularly subclasses 116+ for a slide having a mere ladder, set of steps, etc. used to climb upon the slide.

37	Arm or hand type climbing arrangement:
	This subclass is indented under subclass 23.  Subject matter wherein the acrobatic apparatus is structure which the user may ascend or descend upon primarily by using an upper limb or terminal gripping portion of the user, i.e., an arm or hand. SEE OR SEARCH THIS CLASS, SUBCLASS: 35+, for a play area climbing or traversing arrangement for a juvenile user. 38, for a horizontal bar used for an acrobatic purpose other than climbing. 52+, for stair climbing type exercise equipment. 143+, for a support of a nonacrobatic nature for suspending the user.

38	Horizontal bar:
	This subclass is indented under subclass 23.  Subject matter wherein the acrobatic apparatus is a rod supported in a position perpendicular to vertical, i.e., horizontal. (1) Note. A horizontal chinning bar is proper for this subclass. SEE OR SEARCH THIS CLASS, SUBCLASS: 15+, for a jumping, vaulting or hurdling track or field device often including a horizontal member. 34, for a bar or rope for balancing upon. 35+, for a play area climbing or traversing arrangement often including a horizontal bar. 37, for an arm or hand type climbing arrangement often including a horizontal bar.

39	Attached to vertical wall or associated structure:
	This subclass is indented under subclass 38.  Subject matter wherein the horizontal rod is supported by a portion of an upright planar construction, e.g., a room partition, side surface, etc., or related construction thereto, e.g., a door, window, jamb, etc.

40	Door or door jamb:
	This subclass is indented under subclass 39.  Subject matter wherein the horizontal rod is supported by a movable closure mounted in a walk through passageway in the upright planar construction or by framing structure for surrounding a walk through passageway.

41	Parallel bars:
	This subclass is indented under subclass 38.  Subject matter wherein the acrobatic apparatus includes a plurality of horizontal stationary rods spaced an equal distance apart from each other at all locations along their lengths. (1) Note. Horizontal, parallel dip bars are proper for this subclass. SEE OR SEARCH THIS CLASS, SUBCLASS: 25, for a gymnastic horse having parallel pommel handles.

42	Separately adjustable:
	This subclass is indented under subclass 41.  Subject matter wherein one of the stationary rods is movable to a different stationary position such that the equal distance is maintained.

43	Harness for supporting user:
	This subclass is indented under subclass 38.  Subject matter wherein the acrobatic apparatus includes a strap, belt, or yokelike structure for holding the user while performing acrobatically on the horizontal rod. SEE OR SEARCH CLASS: 54,  Harness for Working Animal,   for animal harnesses for a draft purpose alone or also having a breaking and training purpose. 119,  Animal Husbandry,   particularly subclasses 856+ and 907 for an animal harness in general.

44	HAND, WRIST, OR FINGER:
	This subclass is indented under the class definition.  Subject matter wherein significance is attributed to conditioning or developing a muscle found in a region beyond a forearm of the user, i.e., a hand, wrist, or finger muscle. SEE OR SEARCH CLASS: 84,  Music,   subclasses 465+ for an exercise device for a musician.

45	Involving wrist rotation:
	This subclass is indented under subclass 44.  Subject matter wherein a wrist must be moved in a turning motion to operate the apparatus.

46	About axis perpendicular to forearm:
	This subclass is indented under subclass 45.  Subject matter wherein the wrist turning motion is around a rotational axis situated at approximately a right angle to an arm portion adjacent to the wrist being conditioned or developed.

47	Having individual structure engaging each finger used:
	This subclass is indented under subclass 44.  Subject matter wherein the apparatus includes a separate component or portion for contacting and cooperating with each finger being employed. (1) Note. While plural fingers are normally used and engaged, a single finger alone may be used and engaged.

48	Finger loop:
	This subclass is indented under subclass 47.  Subject matter wherein the separate component or portion encircles the finger being used in a ringlike manner.

49	Grip:
	This subclass is indented under subclass 44.  Subject matter wherein the apparatus includes structure intended to be operated by the hand of the user for conditioning or developing a muscle used for grasping.

50	Having weight feature (e.g., dumbbell, etc.):
	This subclass is indented under subclass 49.  Subject matter wherein the grasp conditioning or developing structure further includes a part or portion which conditions or develops a muscle by providing a user opposing force derived from the force that gravity exerts upon its mass. SEE OR SEARCH THIS CLASS, SUBCLASS: 93+, for user manipulated weights in general and subclass 108, in particular, for a dumbbell, per se.

51	INVOLVING USER TRANSLATION OR PHYSICAL SIMULATION THEREOF:
	This subclass is indented under the class definition.  Subject matter wherein the apparatus is used to condition or develop a muscle employed as the user travels a distance or the user imitates bodily traveling a distance. (1) Note. The user may travel, or imitate traveling, the distance on foot, e.g., by walking, hopping, jogging, etc., in the water, e.g., by swimming, etc., or by using travel enhancing apparatus, e.g., snow or water skis, skates, bicycles, rowboats, surfboards, etc. (2) Note. Conditioning or developing a muscle includes helping the user, e.g., an infant, ambulant invalid, or novice to walk, ski, skate, etc., or learn how to walk, ski, skate, etc., unless provided for elsewhere (see Search notes below). (3) Note. See the Class Definition and the Search Class notes thereunder of Class 297, Chairs and Seats, for the line between that class and Class 280, Land Vehicles, regarding related apparatus found in those classes. SEE OR SEARCH THIS CLASS, SUBCLASS: 14+, for a device related to running over a measured distance in a track or field sport. 27+, for a trampoline used in gymnastics or for jogging in place. SEE OR SEARCH CLASS: 104,  Railways,   particularly subclass 62 for a rail guided vehicle traveling along a fixed track and used for physical training. 135,  Tent, Canopy, Umbrella, or Cane,   particularly subclasses 65+ for a cane, stick, crutch or the like designed to aid in human locomotion or to similar structure in umbrella shafts and swagger sticks when useful for aiding human locomotion and subclass 67 for a walker, per se, (i.e., an aid to locomotion which is a free standing support, having two handles by which it is gripped and is operated by lifting from, moving across and replacing on the ground, floor, etc., and which does not have a seat, path control, or propulsion facilitating means, e.g., wheels, casters, etc.). 280,  Land Vehicles,   particularly subclasses 7.1+ for a walker vehicle propelled by a seated occupant and convertible to a different device, e.g., a stroller, etc., subclasses 43+ for a walker having retractable wheels, subclasses 87.021+ for a wheeled, weight bearing, walker propelled by contact of a hand or foot of an occupant with a surface over which the walker travels and which is unrestricted as to path, except by a wheel or wheel mounting, subclasses 200+ for a wheeled vehicle having other types of positive propelling means, subclasses 638+ for a wheeled vehicle which allows a physical dimension thereof to vary, e.g., a folding vehicle, etc., subclasses 809+ for a skier or skater appliance or attachment including a hand held ski pole and subclasses 841+ for a skate or ski, per se. 297,  Chairs and Seats,   particularly subclasses 5+ for a walker provided with a seat whereby the user may either stand or sit. The seat may be occupied for resting between successive exercising periods of walking, skiing, skating, etc., and may include a mere recitation of wheels or running gear. See (3) Note above. 472,  Amusement Devices,   subclasses 14+ for an occupant propelled roundabout device which carries the occupant along a circuitous path and which can enable the occupant to simulate travelling a distance, even if for an exercise purpose, subclass 48 for an amusement walkway or passageway having a movable floor or stair step, subclasses 85+ for a race track or accessory therefor, subclasses 92+ for a surface or enclosure for an athletic or exhibition event, subclass 127 for a body supporting simulated log rolling device, i.e., a birling device, subclass 130 for an aircraft or space vehicle amusement simulation or simulation of the movement thereof and subclass 136 for an amusement building or part thereof.

52

Stair climbing:

This subclass is indented under subclass 51.  Subject matter wherein significance is attributed to conditioning or developing a muscle employed as the user ascends or descends a set of steps or operates apparatus which imitates ascending or descending a set of steps. SEE OR SEARCH THIS CLASS, SUBCLASS: 35+, for a play area climbing or traversing arrangement for a juvenile user. 37, for arm or hand type climbing arrangement. SEE OR SEARCH CLASS: 472,