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US Patent: 595,164
Wrench
Patentee:
Thomas Green - Davenport, IA

USPTO Classifications:
81/145

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Edwin G. McKee
Phil C. Masi
W. B. Day
D. C. Leonard

Patent Dates:
Applied: Aug. 19, 1897
Granted: Dec. 07, 1897

Patent Pictures:
Thomas Green patent December 7, 1897
USPTO pdf tiff
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Description:
Quick adjust, with multiple spring loaded pawls that engage rack teeth on the shank. This allows for finer adjustment, as the number of pawl teeth is greater than the number of rack teeth for a given distance.

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