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US Patent: 275,235
Screwdriver
Patentees:
Charles H. Mallett (exact or similar names) - Augusta, ME
Zachary T. Furbish (exact or similar names) - Augusta, ME

USPTO Classifications:
192/44, 81/33

Tool Categories:
screwdrivers : screwdriver mechanisms : ratcheting screwdrivers

Assignees:
None

Manufacturer:
Furbish & Hamlen - Unk, ME

Witnesses:
J. E. Badger
S. Lancaster
Patent Dates:
Applied: Jan. 14, 1882
Granted: Apr. 03, 1883

Patent Pictures: [ 1 | 2 | 3 ]
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