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US Patent: 690,407
Wrench
Patentee:
Frank W. Dent - Waukesha, WI

USPTO Classifications:
81/152

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

Assignees:
Frank W. Dent - Waukesha, WI
George W. Swaggart - Waukesha, WI
Byron Griffin - Waukesha, WI

Manufacturer:
Dent and Co. - Waukesha, WI
Clutch Wrench Co. - Waukesha, WI

Witnesses:
Wm. Shaw
Geo. M. S. Jewett
G. B. Foster
Howard D. Orr

Patent Dates:
Applied: Sep. 20, 1901
Granted: Jan. 07, 1902

Patent Pictures:
Frank W. Dent Patent January 7. 1902
USPTO pdf tiff
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Description:
This improvement to William Hatten's January 16, 1900 patent (no. 641,451) adds refinements to deal with the effects of wear. The gripping portion is called a clutch in the specifications.

Dent produced the wrench, and a company variously identified as the Lutch or Clutch Wrench Co. also produced it.

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