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US Patent: 444,450
Wrench
Patentee:
Henry Marshall (exact or similar names) - Lincoln, NE

USPTO Classifications:
81/135

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
W. S. Duvall
H. G. Dieterich
Lou. L. E. Stewart
R. L. Stewart

Patent Dates:
Applied: Oct. 23, 1890
Granted: Jan. 13, 1891

Patent Pictures:
Henry Marshall patent January 13, 1891
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Description:
A swinging lever with teeth acts as a clamp to hold the position of the sliding adjustable jaw which has teeth on the back side. A locking ring on the end of the lever can be swung around the end of the handle to hold the adjustment.

Corresponding Canadian patent no. CA-36,140 was issued to Henry Marshal and Samuel K. Huntsinger on March 14, 1891.

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