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[Search a list of Patent Appplications for class 441]  Class   441BUOYS, RAFTS, AND AQUATIC DEVICES
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   [List of Patents for class 441 subclass 1]  1           BUOY
    [List of Patents for class 441 subclass 2]  2           Subclass 2 indent level is 1 With means to call buoy to surface
   [List of Patents for class 441 subclass 3]  3           Subclass 3 indent level is 1 For mooring a vessel
   [List of Patents for class 441 subclass 4]  4           Subclass 4 indent level is 2 Having liquid cargo transfer means
   [List of Patents for class 441 subclass 6]  6           Subclass 6 indent level is 1 Marker buoy
   [List of Patents for class 441 subclass 7]  7           Subclass 7 indent level is 2 Having means to release buoy upon submergence
    [List of Patents for class 441 subclass 8]  8           Subclass 8 indent level is 3 Water soluble or water weakened member
    [List of Patents for class 441 subclass 9]  9           Subclass 9 indent level is 3 Gas assisted
    [List of Patents for class 441 subclass 10]  10           Subclass 10 indent level is 3 Responsive to hydrostatic pressure
   [List of Patents for class 441 subclass 11]  11           Subclass 11 indent level is 2 With signalling device
    [List of Patents for class 441 subclass 12]  12           Subclass 12 indent level is 3 Audible
   [List of Patents for class 441 subclass 13]  13           Subclass 13 indent level is 3 Illuminating
   [List of Patents for class 441 subclass 14]  14           Subclass 14 indent level is 4 By combustion of fluid
   [List of Patents for class 441 subclass 16]  16           Subclass 16 indent level is 4 Electric light
    [List of Patents for class 441 subclass 17]  17           Subclass 17 indent level is 5 Having water activated switch
    [List of Patents for class 441 subclass 18]  18           Subclass 18 indent level is 5 Having water activated battery
    [List of Patents for class 441 subclass 19]  19           Subclass 19 indent level is 3 Smoke producing
    [List of Patents for class 441 subclass 20]  20           Subclass 20 indent level is 3 Reflecting means
   [List of Patents for class 441 subclass 21]  21           Subclass 21 indent level is 1 Having means to control attitude or position
    [List of Patents for class 441 subclass 22]  22           Subclass 22 indent level is 2 Fluid reaction surface
   [List of Patents for class 441 subclass 23]  23           Subclass 23 indent level is 2 Tether
   [List of Patents for class 441 subclass 24]  24           Subclass 24 indent level is 3 Having playout means
    [List of Patents for class 441 subclass 25]  25           Subclass 25 indent level is 4 Having means to control playout
    [List of Patents for class 441 subclass 26]  26           Subclass 26 indent level is 4 Reel for tether
    [List of Patents for class 441 subclass 27]  27           Subclass 27 indent level is 4 Having seat for buoy
   [List of Patents for class 441 subclass 28]  28           Subclass 28 indent level is 2 Having ballast means
    [List of Patents for class 441 subclass 29]  29           Subclass 29 indent level is 3 Variable ballast
   [List of Patents for class 441 subclass 30]  30           Subclass 30 indent level is 1 Inflatable
    [List of Patents for class 441 subclass 31]  31           Subclass 31 indent level is 2 Having chemical reactor to produce gas
   [List of Patents for class 441 subclass 32]  32           Subclass 32 indent level is 1 Container type
    [List of Patents for class 441 subclass 33]  33           Subclass 33 indent level is 2 With means to release transponder, sensor, etc.
    [List of Patents for class 441 subclass 34]  34           Subclass 34 indent level is 2 Storm oil distributor
   [List of Patents for class 441 subclass 35]  35           RAFTS
    [List of Patents for class 441 subclass 36]  36           Subclass 36 indent level is 1 With signal device
    [List of Patents for class 441 subclass 37]  37           Subclass 37 indent level is 1 Having water reactant stabilizing means
    [List of Patents for class 441 subclass 38]  38           Subclass 38 indent level is 1 With shelter
    [List of Patents for class 441 subclass 39]  39           Subclass 39 indent level is 1 Having boarding aid
   [List of Patents for class 441 subclass 40]  40           Subclass 40 indent level is 1 Inflatable
    [List of Patents for class 441 subclass 41]  41           Subclass 41 indent level is 2 Having inflation valve means
    [List of Patents for class 441 subclass 42]  42           Subclass 42 indent level is 2 Having storage container for raft
    [List of Patents for class 441 subclass 43]  43           Subclass 43 indent level is 1 Having centrally located suspended basket
   [List of Patents for class 441 subclass 44]  44           Subclass 44 indent level is 1 Columnar flotation member
   [List of Patents for class 441 subclass 45]  45           Subclass 45 indent level is 2 Hollow
    [List of Patents for class 441 subclass 46]  46           Subclass 46 indent level is 3 Barrel or drum
   [List of Patents for class 441 subclass 47]  47           Subclass 47 indent level is 1 Formed from log or other product
    [List of Patents for class 441 subclass 48]  48           Subclass 48 indent level is 2 Booming
    [List of Patents for class 441 subclass 49]  49           Subclass 49 indent level is 2 Cribbing
   [List of Patents for class 441 subclass 50]  50           Subclass 50 indent level is 2 Coupling means
    [List of Patents for class 441 subclass 51]  51           Subclass 51 indent level is 3 Dog
    [List of Patents for class 441 subclass 52]  52           Subclass 52 indent level is 3 Clamp
    [List of Patents for class 441 subclass 53]  53           Subclass 53 indent level is 3 Transverse rigid member
    [List of Patents for class 441 subclass 54]  54           Subclass 54 indent level is 3 Encircling flexible member
   [List of Patents for class 441 subclass 55]  55           SWIMMING AID TO INCREASE STROKE EFFICIENCY
   [List of Patents for class 441 subclass 56]  56           Subclass 56 indent level is 1 Hand attached, held, or worn
    [List of Patents for class 441 subclass 57]  57           Subclass 57 indent level is 2 Having finger stalls (e.g., gloves)
    [List of Patents for class 441 subclass 58]  58           Subclass 58 indent level is 2 Secured to hand by strap
    [List of Patents for class 441 subclass 59]  59           Subclass 59 indent level is 1 Arm attached
    [List of Patents for class 441 subclass 60]  60           Subclass 60 indent level is 1 Leg attached
   [List of Patents for class 441 subclass 61]  61           Subclass 61 indent level is 1 Foot attached
    [List of Patents for class 441 subclass 62]  62           Subclass 62 indent level is 2 Repositioned by biasing means
    [List of Patents for class 441 subclass 63]  63           Subclass 63 indent level is 2 With lock or latch
    [List of Patents for class 441 subclass 64]  64           Subclass 64 indent level is 2 Flipper
   [List of Patents for class 441 subclass 65]  65           WATER SKIMMING OR WALKING DEVICE
    [List of Patents for class 441 subclass 66]  66           Subclass 66 indent level is 1 Inflatable
    [List of Patents for class 441 subclass 67]  67           Subclass 67 indent level is 1 Circular
   [List of Patents for class 441 subclass 68]  68           Subclass 68 indent level is 1 Water ski
    [List of Patents for class 441 subclass 69]  69           Subclass 69 indent level is 2 Ski tow handle
    [List of Patents for class 441 subclass 70]  70           Subclass 70 indent level is 2 Ski binding
    [List of Patents for class 441 subclass 71]  71           Subclass 71 indent level is 2 With rooster tail producing means
    [List of Patents for class 441 subclass 72]  72           Subclass 72 indent level is 2 With seat
    [List of Patents for class 441 subclass 73]  73           Subclass 73 indent level is 2 Having connecting means
    [List of Patents for class 441 subclass 74]  74           Subclass 74 indent level is 1 Surfboard
    [List of Patents for class 441 subclass 75]  75           Subclass 75 indent level is 1 With lashing
   [List of Patents for class 441 subclass 76]  76           Subclass 76 indent level is 1 Water walking device (e.g., water shoes)
    [List of Patents for class 441 subclass 77]  77           Subclass 77 indent level is 2 Having pivoted traction flap
    [List of Patents for class 441 subclass 78]  78           Subclass 78 indent level is 2 Spheroid or wheel-like device encircling walker
    [List of Patents for class 441 subclass 79]  79           Subclass 79 indent level is 1 Having stabilizing surface
   [List of Patents for class 441 subclass 80]  80           WATER RESCUE OR LIFE PROTECTING APPARATUS
    [List of Patents for class 441 subclass 81]  81           Subclass 81 indent level is 1 Tossable apertured member (e.g., ring)
    [List of Patents for class 441 subclass 82]  82           Subclass 82 indent level is 1 For use over ice
    [List of Patents for class 441 subclass 83]  83           Subclass 83 indent level is 1 Air-sea rescue device
   [List of Patents for class 441 subclass 84]  84           Subclass 84 indent level is 1 Lifeline
    [List of Patents for class 441 subclass 85]  85           Subclass 85 indent level is 2 Having line propelling means
    [List of Patents for class 441 subclass 86]  86           Subclass 86 indent level is 1 Buoyant shark screen encircling user
    [List of Patents for class 441 subclass 87]  87           Subclass 87 indent level is 1 Passenger enclosing bouyancy device
   [List of Patents for class 441 subclass 88]  88           Subclass 88 indent level is 1 Personal flotation device
    [List of Patents for class 441 subclass 89]  89           Subclass 89 indent level is 2 With signal means
   [List of Patents for class 441 subclass 90]  90           Subclass 90 indent level is 2 With mechanical inflation means
    [List of Patents for class 441 subclass 91]  91           Subclass 91 indent level is 3 By pump
   [List of Patents for class 441 subclass 92]  92           Subclass 92 indent level is 3 By compressed gas means
   [List of Patents for class 441 subclass 93]  93           Subclass 93 indent level is 4 With puncturing means
    [List of Patents for class 441 subclass 94]  94           Subclass 94 indent level is 5 Lever actuated
    [List of Patents for class 441 subclass 95]  95           Subclass 95 indent level is 5 Actuated by water softened or soluble member
   [List of Patents for class 441 subclass 96]  96           Subclass 96 indent level is 4 With control valve
   [List of Patents for class 441 subclass 98]  98           Subclass 98 indent level is 3 By gas generation from chemical reaction
    [List of Patents for class 441 subclass 99]  99           Subclass 99 indent level is 4 With manually operated valve
   [List of Patents for class 441 subclass 100]  100           Subclass 100 indent level is 4 With soluble or deformable element
   [List of Patents for class 441 subclass 102]  102           Subclass 102 indent level is 2 Body suit
   [List of Patents for class 441 subclass 103]  103           Subclass 103 indent level is 3 Full length
   [List of Patents for class 441 subclass 104]  104           Subclass 104 indent level is 4 With hood
    [List of Patents for class 441 subclass 105]  105           Subclass 105 indent level is 5 With mask
   [List of Patents for class 441 subclass 106]  106           Subclass 106 indent level is 2 For torso
    [List of Patents for class 441 subclass 107]  107           Subclass 107 indent level is 3 With sleeve
   [List of Patents for class 441 subclass 108]  108           Subclass 108 indent level is 3 With buoyancy means substantially encircling the torso