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US Patent: 526,658
Wrench and Bit Stock
Horace Polis - Philadelphia, PA

USPTO Classifications:
279/44, 279/93, 81/171, 81/186, 81/73

Tool Categories:
wrenches : brace wrenches

Lawrence F. Mooney - Philadelphia, PA

Not known to have been produced

L. Douville
P. F. Chagle
E. H. Fairbanks
John A. Wiedersheim

Patent Dates:
Applied: Apr. 16, 1894
Granted: Sep. 25, 1894

Patent Pictures:
Horace Polis patent September 25, 1894
USPTO pdf tiff
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The distinctive feature is the jaw shape which incorporates a holder for matching tools such as drill bits, screwdriver blades and the like.

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