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US Patent: 2,543,441
Cam Action Screwdriver
Impact Screwdriver
Patentee:
George F. Grummy (exact or similar names) - Meriden, CT

USPTO Classifications:
173/93.7, 81/463

Tool Categories:
screwdrivers

Assignees:
None

Manufacturer:
Camdriver Co. - Meriden, CT

Witnesses:
Unknown
Patent Dates:
Applied: Mar. 11, 1947
Granted: Feb. 27, 1951

Patent Pictures: [ 1 | 2 ]
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