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CPC
COOPERATIVE PATENT CLASSIFICATION
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B43L
ARTICLES FOR WRITING OR DRAWING UPON;
{
WRITING OR DRAWING AIDS;
}
 ACCESSORIES FOR WRITING OR DRAWING (workshop equipment for marking-out work B25H 7/00; teaching hand-writing or drawing G09B 11/00)
NOTE
-
Devices used for both teaching and facilitating writing or drawing are classified in G09B 11/00)

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Guide Heading:
Articles for writing or drawing upon
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B43L 1/00
Repeatedly-usable boards or tablets for writing or drawing (drawing-boards B43L 5/00)
B43L 1/002
.
{
chemical details
}
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B43L 1/004
.
{
with illuminating devices
}
B43L 1/006
. .
{
with luminescent substances
}
B43L 1/008
.
{
with magnetic action
}
B43L 1/02
.
Slates
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B43L 1/04
.
Blackboards (
{
wall mounting or suspension arrangements for blackboards or the like A47B 97/001
}
; easels or stands for blackboards A47B 97/04)
B43L 1/045
. .
{
with magnetic action
}
B43L 1/06
. .
rigid
B43L 1/08
. .
flexible
B43L 1/10
. .
Writing surfaces thereof
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B43L 1/12
.
having transluscent writing surfaces producing visual impressions by co-operation with backing members
{
(B43L 1/008 takes precedence)
}
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B43L 1/123
. .
{
Flexible writing surface or backing
}
B43L 1/126
. . .
{
withinterposed adhesive substances
}
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B43L 3/00
Writing or drawing underlays, e.g. blotting pads (blotters B43L 17/00;
{
supports for note pads: B42D 5/005
}
)
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B43L 3/001
.
{
with illuminating devices
}
B43L 3/002
. .
{
with luminescent substances
}
B43L 3/004
.
{
without blotting means
}
B43L 3/005
.
{
provided with a casing
}
B43L 3/007
.
{
with rain protection means
}
B43L 3/008
.
{
with supporting means (bracelets with means for attaching a writing instrument or a memo pad A44C 5/0046; for attachment to shopping trolleys B62B 3/1428)
}
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B43L 5/00
Drawing boards (drawing desks or tables A47B 27/00, A47B 85/02; stands for drawing-boards A47B 97/04)
B43L 5/002
.
{
with pivoting drawing surface
}
B43L 5/005
.
{
with magnetic action
}
B43L 5/007
.
{
drawing copying devices using a transparency
}
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B43L 5/02
.
having means for clamping sheets of paper thereto (drawing-pins B43M 15/00)
B43L 5/022
. .
{
with magnets
}
B43L 5/025
. .
{
with paper rolls
}
B43L 5/027
. .
{
with suction devices
}
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Guide Heading:
Writing or drawing aids
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B43L 7/00
Straightedges (guides; curve rulers or templets B43L 13/20; straightedges characterised by the provision of indicia or the like for measuring, e.g. rulers or tapes with measuring scales or marks for direc reading, G01B)
NOTE
-
In this group, the following term is used with the meaning indicated: "straightedge" means an instrument or its edge serving the purpose of acting as a guide for the drawing of a straight line.

B43L 7/002
.
{
for drawing boards and tables
}
B43L 7/005
.
{
combined with other drawing aids
}
B43L 7/007
.
{
with holding means
}
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B43L 7/02
.
T-squares
{
and other similar squares
}
B43L 7/023
. .
{
with magnets
}
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B43L 7/027
.
Plural non-adjustable straightedges fixed at right angles (B43L 7/02 takes precedence)
B43L 7/0275
. .
{
Triangles
}
B43L 7/033
.
Plural non-adjustable straightedges forming non-right angles
B43L 7/04
.
with rollers (with interconnected rollers B43L 13/02)
B43L 7/08
.
with arrangements for attaching additional drawing equipment e.g. for hatching, dotting
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B43L 7/10
.
Plural straightedges relatively movable
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B43L 7/12
. .
Square and pivoted straightedges
B43L 7/125
. . .
{
Comprising at least two straightedges remaining parallel
}
B43L 7/14
. .
Square and sliding straight edges
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B43L 9/00
Circular curve-drawing or like instruments (curve rulers or templets B43L 13/00)
B43L 9/002
.
{
with perforated or marked discs
}
B43L 9/005
.
{
with rollers or carriages
}
B43L 9/007
.
{
with perforated or marked rulers
}
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B43L 9/02
.
Compasses (proportional compasses B43L 9/08;
{
Compasses for drawing ellipses B43L 11/041;
}
 Compasses for drawing spirals B43L 11/06)
B43L 9/025
. .
{
Compasses with parallel legs
}
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B43L 9/04
. .
Beam compasses
B43L 9/045
. . .
{
Tape compasses
}
B43L 9/06
. .
with legs formed by flat springs
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B43L 9/08
.
Proportional compasses or dividers
B43L 9/10
. .
with arrangements for drawing polygons
B43L 9/12
.
Dividers (proportional dividers B43L 9/08)
B43L 9/14
.
with changeable leg-ends for conversion into compasses, dividers, or callipers (B43L 9/24 takes precedence)
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B43L 9/16
.
Features common to compasses, dividers, and callipers
B43L 9/18
. .
Legs with toggle joints
B43L 9/20
. .
Pivots
B43L 9/22
. .
Leg-angle adjusting-means separate from pivots
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B43L 9/24
. .
Means for mounting points or writing appliances on legs
B43L 9/245
. . .
{
for mounting centering elements
}
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B43L 11/00
Non-circular-curve-drawing instruments (curve rulers or templets B43L 13/20)
B43L 11/005
.
{
pendulum-actuated
}
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B43L 11/02
.
for drawing conic sections
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B43L 11/04
. .
for drawing ellipses
B43L 11/041
. . .
{
by means of a compass
}
B43L 11/043
. . .
{
with stencils
}
B43L 11/045
. . .
with cords or like flexible elements
B43L 11/05
. . .
with gears
B43L 11/055
. . .
with guides
B43L 11/06
.
for drawing spirals
B43L 11/08
.
for drawing involutes
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B43L 12/00
Means to prevent slippage
B43L 12/02
.
magnetic
{
magnetic holding means for T-squares: B43L 7/023
}
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B43L 13/00
Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for (stencils for surface decoration B44D)
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B43L 13/001
.
{
Mathematical drawing instruments
}
B43L 13/002
. .
{
Angle intersecting devices
}
B43L 13/004
.
{
Manual lettering devices
}
B43L 13/005
.
{
Portable combined drawing-aids including boards
}
B43L 13/007
.
{
Contour tracing devices
}
B43L 13/008
.
{
Circle transformers
}
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B43L 13/02
.
Draughting machines or drawing devices for keeping parallelism (T-squares B43L 7/02)
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B43L 13/022
. .
{
automatic (apparatus for recording measured values G01D; Control systems for drawing machines G06K 15/22, G06F 3/13)
}
B43L 13/024
. . .
{
Drawing heads therefor
}
B43L 13/026
. . .
{
for writing characters or symbols (manual lettering devices B43L 13/004)
}
B43L 13/028
. .
{
Hand held or associated with the writing instrument
}
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B43L 13/04
. .
Guides for rulers
B43L 13/041
. . .
{
with toothed racks
}
B43L 13/043
. . .
{
with squares
}
B43L 13/045
. . .
{
with carriages
}
B43L 13/046
. . .
{
with cables
}
B43L 13/048
. . .
{
with T-squares
}
B43L 13/06
. . .
with pivoted guide rods
B43L 13/08
. .
Protractor heads
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B43L 13/10
.
Pantographic instruments for copying, enlarging, or diminishing (arrangements for copying in machine tools B23Q)
B43L 13/12
. .
Multiple writing devices
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B43L 13/14
.
Devices for drawing in perspective
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B43L 13/141
. .
{
Two-dimensional devices
}
B43L 13/142
. . .
{
T-squares (T-squares in general B43L 7/02)
}
B43L 13/143
. . .
{
mounted on parallel-motion drawing appliances (parallel devices in general B43L 13/02)
}
B43L 13/144
. . .
{
including protractors
}
B43L 13/145
. . .
{
Rulers (rulers in general B43L 7/00)
}
B43L 13/146
. . .
{
Squares (squares in general B43L 7/02)
}
B43L 13/147
. .
{
Three-dimensional devices
}
B43L 13/148
. .
{
using copying or multiple drawing arrangements
}
B43L 13/149
. .
{
including grids
}
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B43L 13/16
. .
free-hand
B43L 13/18
. . .
having optical or projecting equipment (optical systems or apparatus G02B; projectors G03B)
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B43L 13/20
.
Curve rulers or templets
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B43L 13/201
. .
{
Stencils for drawing figures, objects
}
B43L 13/203
. . .
{
human, animal, or vegetal figures
}
B43L 13/205
. . .
{
geometrical figures
}
B43L 13/206
. . .
{
material objects
}
B43L 13/208
. . .
{
letters, numbers, symbols (lettering devices B43L 13/004)
}
B43L 13/22
. .
Adjustable curve rulers
B43L 13/24
.
Devices for generating stepwise movements of drawing equipment, e.g. for hatching
B43L 15/00
Supports for attachment to hands or arms for facilitating writing or drawing
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Guide Heading:
Writing or drawing accessories
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B43L 17/00
Blotters (blotting pads B43L 3/00; combined with writing implements B43K 29/04; making blotting paper D21F 11/14)
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B43L 17/02
.
for blotting-paper sheets
B43L 17/04
. .
hand held
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B43L 17/06
.
for reeled blotting-paper
B43L 17/08
. .
Roller blotters
B43L 17/10
.
using blotting material other than paper
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B43L 19/00
Erasers, rubbers, or erasing devices; Holders therefor (rubbers or erasing knives combined with writing implements B43K 29/02, B43K 29/18)
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B43L 19/0006
.
{
motor-driven
}
B43L 19/0012
. .
{
Mechanical motors, e.g. springs, spindles
}
B43L 19/0018
.
{
with fluids
}
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B43L 19/0025
.
{
Eraser or rubber material, e.g. comprising hard particles
}
B43L 19/0031
. .
{
comprising magnetic particles therein
}
B43L 19/0037
.
{
Eraser cleaners
}
B43L 19/0043
.
{
Erasing by electronic or electrolytic means
}
B43L 19/005
.
{
Finger mounted erasers
}
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B43L 19/0056
.
{
Holders for erasers
}
B43L 19/0062
. .
{
Magnetic holders
}
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B43L 19/0068
. .
{
Hand-held holders
}
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B43L 19/0075
. . .
{
of the pencil type
}
B43L 19/0081
. . . .
{
of the mechanical pencil type
}
B43L 19/0087
.
{
Assembling, repairing or finishing erasers
}
B43L 19/0093
.
{
Eraser shields
}
B43L 19/02
.
Erasing knives (knives in general B26B)
B43L 19/04
.
Fibrous erasers
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B43L 21/00
Blackboard or slate cleaning devices
B43L 21/02
.
with means for absorbing the chalk dust
B43L 21/04
.
Wiper holders
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B43L 23/00
Sharpeners for pencils or leads (grinding or cutting tools in general B24; B26; combined with writing implements B43K 29/06)
B43L 23/002
.
{
with continuous conveying means for the pencil
}
B43L 23/004
.
{
with radial cutting blades
}
B43L 23/006
.
{
with rasping surfaces
}
B43L 23/008
.
{
with rotating cutting bodies
}
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B43L 23/02
.
with gearing
B43L 23/04
. .
with cranked handles
B43L 23/06
.
in which the pencils or leads are sharpened by only axial movement against cutting blades
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B43L 23/08
.
in which the pencils or leads are sharpened mainly by rotational movement against cutting blades (B43L 23/02 takes precedence)
B43L 23/085
. .
{
one of the blades being used for shaping the writing point
}
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B43L 25/00
Ink receptacles (liquid receptacles in general B65D, e.g. B65D 1/00)
B43L 25/001
.
{
with adjustable depth of dipping
}
B43L 25/002
.
{
Caps or closure means for ink receptacles (closure means for containers in general B65D)
}
B43L 25/004
.
{
Ink receptacles with solid ink; Non reversable receptacles
}
B43L 25/005
.
{
Ink receptacles incorporated in a table or a bench
}
B43L 25/007
.
{
Portable ink receptacles; Filling devices for receptacles
}
B43L 25/008
.
{
with wick feed
}
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B43L 25/02
.
with separate dipping-cups
B43L 25/04
. .
supplied by pressure arrangements
B43L 25/06
. .
supplied by tilting the receptacles
B43L 25/08
.
with arrangements for dissolving ink powder
B43L 25/10
.
with means for holding objects
B43L 25/12
.
with pen-wiping means
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B43L 27/00
Ink stands
B43L 27/02
.
having means for securing objects thereon
B43L 27/04
.
securable to other objects
This page is owned by Office of Patent Classification.
Last Modified: 04/16/2013 4:31:16 PM