(0)B43L:1/1:
IPC6
SECTION B - PERFORMING OPERATIONS; TRANSPORTING
ARTICLES FOR WRITING OR DRAWING UPON; ACCESSORIES FOR...
B43L
2/2
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B43L011/00 - B43L027/02
11
/
00
Non-circular-curve-drawing instruments
(curve rulers or templets
B 43 L 13/20
)
11
/
02
•
for drawing conic sections
11
/
04
•
•
for drawing ellipses
11
/
045
•
•
•
with cords or like flexible elements [5]
11
/
05
•
•
•
with gears [5]
11
/
055
•
•
•
with guides [5]
11
/
06
•
for drawing spirals
11
/
08
•
for drawing involutes
12
/
00
Means to prevent slippage [5]
12
/
02
•
magnetic [5]
13
/
00
Drawing instruments, or writing or drawing appliances or accessories, not otherwise provided for
(stencils for surface decoration
B 44 D
)
13
/
02
•
Drafting machines or drawing devices for keeping parallelism (T-squares
B 43 L 7/02
)
13
/
04
•
•
Guides for rulers
13
/
06
•
•
•
with pivoted guide rods
13
/
08
•
•
Protractor heads
13
/
10
•
Pantographic instruments for copying, enlarging, or diminishing (arrangements for copying in machine tools
B 23 Q
)
13
/
12
•
•
Multiple writing devices
13
/
14
•
Devices for drawing in perspective
13
/
16
•
•
free-hand
13
/
18
•
•
•
having optical or projecting equipment (optical systems or apparatus
G 02 B
; projectors
G 03 B
)
13
/
20
•
Curve rulers or templets
13
/
22
•
•
Adjustable curve rulers
13
/
24
•
Devices for generating stepwise movements of drawing equipment, e.g. for hatching
15
/
00
Supports for attachment to hands or arms for facilitating writing or drawing
17
/
00
Blotters
(blotting pads
B 43 L 3/00
; combined with writing implements
B 43 K 29/04
; making blotting paper
D 21 F 11/14
)
[2]
17
/
02
•
for blotting-paper sheets
17
/
04
•
•
hand-held
17
/
06
•
for reeled blotting-paper
17
/
08
•
•
Roller blotters
17
/
10
•
using blotting material other than paper
19
/
00
Erasers, rubbers, or erasing devices; Holders therefor
(rubbers or erasing knives combined with writing implements
B 43 K 29/02
,
B 43 K 29/18
)
19
/
02
•
Erasing knives (knives in general
B 26 B
)
19
/
04
•
Fibrous erasers
21
/
00
Blackboard or slate-cleaning devices
21
/
02
•
with means for absorbing the chalk dust
21
/
04
•
Wiper holders
23
/
00
Sharpeners for pencils or leads
(grinding or cutting tools in general
B 24
,
B 26
; combined with writing implements
B 43 K 29/06
)
[2]
23
/
02
•
with gearing
23
/
04
•
•
with cranked handles
23
/
06
•
in which the pencils or leads are sharpened by only axial movement against cutting blades
23
/
08
•
in which the pencils or leads are sharpened mainly by rotational movement against cutting blades (
B 43 L 23/02
takes precedence)
25
/
00
Ink receptacles
(liquid receptacles in general
B 65 D
, e.g.
B 65 D 1/00
)
25
/
02
•
with separate dipping-cups
25
/
04
•
•
supplied by pressure arrangements
25
/
06
•
•
supplied by tilting the receptacles
25
/
08
•
with arrangements for dissolving ink powder
25
/
10
•
with means for holding objects
25
/
12
•
with pen-wiping means
27
/
00
Ink stands
27
/
02
•
having means for securing objects thereon
27
/
04
•
securable to other objects
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