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Industry
CPC
B43L9/06
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Parent Industries
B
PERFORMING OPERATIONS TRANSPORTING
B43
Writing accessories
B43L
ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
B43L9/00
Circular curve-drawing or like instruments
Current Industry
B43L9/06
with legs formed by flat springs
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Patents Grants
last 30 patents
Information
Patent Grant
3394460
Patent number
3,394,460
Issue date
Jul 30, 1968
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
3335497
Patent number
3,335,497
Issue date
Aug 15, 1967
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
3197871
Patent number
3,197,871
Issue date
Aug 3, 1965
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
3190001
Patent number
3,190,001
Issue date
Jun 22, 1965
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
2454305
Patent number
2,454,305
Issue date
Nov 23, 1948
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
1779725
Patent number
1,779,725
Issue date
Oct 28, 1930
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
1734613
Patent number
1,734,613
Issue date
Nov 5, 1929
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
1716782
Patent number
1,716,782
Issue date
Jun 11, 1929
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Patents Applications
last 30 patents