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Automatic machines
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Industry
CPC
B43K21/26
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Parent Industries
B
PERFORMING OPERATIONS TRANSPORTING
B43
Writing accessories
B43K
IMPLEMENTS FOR WRITING OR DRAWING
B43K21/00
Propelling pencils
Current Industry
B43K21/26
Automatic machines
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Patents Grants
last 30 patents
Information
Patent Grant
2902754
Patent number
2,902,754
Issue date
Sep 8, 1959
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Patents Applications
last 30 patents