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US Patent: 767,311
Wrench
Patentees:
George W. Otis (exact or similar names) - Dale, Outagamie County, WI
Robert  W. Huettl (exact or similar names) - Dale, WI

USPTO Classifications:
81/161, 81/DIG.3

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Edwin E. Vrooman
J. M. Fowler, Jr.
H. A. Henkel
A. R. Waterhouse

Patent Dates:
Applied: Mar. 15, 1904
Granted: Aug. 09, 1904

Patent Pictures:
George W. Otis and & R. W. Huettl patent August 9, 1904
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Description:
The adjusting collar has internal interrupted threads allowing for screw and quick adjustment, and a stop to prevent full rotation. The interior of the movable jaw has a spring-loaded detent which engages one of a series of notches in the edge of the adjusting collar. This combination provides quick & screw adjustment with the detent to hold the adjustment against accidental movement.

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