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US Patent: 1,215,308
Combination Tool
John Emil Johnson - Jamestown, NY

USPTO Classifications:
7/138, 7/143, 7/165, 81/177.4, 81/436, 81/440

Tool Categories:
screwdrivers : screwdriver handles
woodworking tools : hammers

Crescent Tool Co. - Jamestown, NY

Crescent Tool Co. - Jamestown, NY

H. A. Sandberg
Arthur O. Morse
Harold Forsburg

Patent Dates:
Applied: Nov. 10, 1914
Granted: Feb. 06, 1917

Patent Pictures: [ 1 | 2 | 3 ]
John Emil Johnson Pat. Feb. 6, 1917
USPTO pdf tiff
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The tool is a screwdriver with a folding handle that can double as a light-weight hammer. The patent also describe the tool being used as a socket or auxiliary tool driver. That third function is not realized in the tool as produced.

Marketed as the "HamR-Handle" or "All Steel" screwdriver.

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