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US Patent: 513,619
Wrench
Patentee:
Johannes Theodor Pedersen (exact or similar names) - New York, NY

USPTO Classifications:
81/125.1, 81/177.8

Tool Categories:
wrenches : wrench components : wrench jaw components
wrenches : wrench components : wrench handle components

Assignees:
None

Manufacturer:
Pedersen Mfg. Co. - New York, NY

Witnesses:
Chas. H. Smith
J. Staib
Geo. T. Pinckney
Harold Serrell

Patent Dates:
Applied: Mar. 10, 1893
Granted: Jan. 30, 1894

Patent Pictures:
Johannes T. Pedersen Pat. Jan. 30, 1894
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Description:
Lugs on the inside of the slotted handle end grip the inner edge of the rim around the edge of the head. The patent shows several alternate head styles. The open end wrench version was produced, incorporating Pedersen's improvements described in pat. no. 539,441.

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