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US Patent: 685,976
Wrench
Patentee:
Frank G. Davison (exact or similar names) - Brooklyn, NY

USPTO Classifications:
81/113

Tool Categories:
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
None

Manufacturer:
Frank G. Davison - Brooklyn, NY

Witnesses:
F. A. Stewart
F. F. Teller

Patent Dates:
Applied: Jun. 18, 1901
Granted: Nov. 05, 1901

Patent Pictures:
Frank G. Davison patent November 5, 1901
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Description:
The movable jaws slide in flaring ways in the hollow handle, and are adjusted by a nut and screw which advance and retract them.

A January 1902 MACHINERY article notes Davison's plan to produce this wrench in three sizes.

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