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US Patent: 894,673
Ratchet mechanism
Patentee:
George O. Leopold (exact or similar names) - Philadelphia, PA

USPTO Classifications:
193/44, 74/134, 74/575

Tool Categories:
screwdrivers : screwdriver mechanisms : ratcheting screwdrivers
woodworking tools : braces : ratchet braces

Assignees:
North Brothers Manufacturing Co. - Philadelphia, PA

Manufacturer:
North Brothers Manufacturing Co. - Philadelphia, PA

Witnesses:
William A. Barr
Joseph H. Klein

Patent Dates:
Applied: Feb. 15, 1908
Granted: Jul. 28, 1908

Patent Pictures:
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