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US Patent: 2,522,217
Composite bit device for screw drivers and the like
Patentees:
Harry G. Fischer - Dayton, OH
LeRoy J. Wendling - Dayton, OH

USPTO Classifications:
81/438, 81/460, 81/52

Tool Categories:
screwdrivers : screwdriver blades

Assignees:
The Apex Machine & Tool Co - Dayton, OH

Manufacturer:
The Apex Machine & Tool Co - Dayton, OH

Witnesses:
Unknown

Patent Dates:
Applied: Nov. 06, 1946
Granted: Sep. 12, 1950

Patent Pictures: [ 1 | 2 | 3 ]
USPTO pdf tiff
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Description:
Wooden handled example marked APEX Made in USA 1500. Plastic handled example marked 1510.

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