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US Patent: 2,815,834
Portable power tool drive mechanism
Patentee:
Arthur William Mall - Flossmoor, IL

USPTO Classifications:
173/170, 173/41, 173/93.6, 192/3.51, 477/34, 74/385, 81/37

Tool Categories:
woodworking machines : handheld power tools : impact wrenches

Assignees:
Mall Tool Co. - Chicago, IL

Manufacturer:
Mall Tool Co. - Chicago, IL

Witnesses:
Unknown

Patent Dates:
Applied: Jun. 29, 1954
Granted: Dec. 10, 1957

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Mall Tool Co.

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