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US Patent: 1,023,023
Gearing
Patentee:
George O. Leopold (exact or similar names) - Philadelphia, PA

USPTO Classifications:
74/127

Tool Categories:
woodworking tools : hand drills

Assignees:
North Brothers Manufacturing Co. - Philadelphia, PA

Manufacturer:
North Brothers Manufacturing Co. - Philadelphia, PA

Witnesses:
William E. Shupe
William A. Barr

Patent Dates:
Applied: Sep. 14, 1910
Granted: Apr. 09, 1912

Patent Pictures:
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Description:
This patent is for a device that will lock the shaft for the removal and insertion of bits. The patent is for an improvement to the #50 reciprocating drill.

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