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US Patent: 670,799
Monkey Wrench
Patentee:
Frank X. Miller (exact or similar names) - Chicago, IL

USPTO Classifications:
16/111.1, 81/145, 81/177.4, 81/2

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Chas. E. Gaylord
Geo. C. Davison
L. M. Freeman
L. B. Coupland

Patent Dates:
Applied: Sep. 22, 1900
Granted: Mar. 26, 1901

Patent Pictures:
Frank X. Miller patent March 26, 1901
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Description:
The adjustment means for the quick-adjust movable jaw is a spring-loaded toothed plate with a central push button. The main shank of the wrench has a central slot for the shaft of the push button. The handle has a hollow with a latching cap for an oiler or supplemental tool storage.

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