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US Patent: 320,357
Wrench
Patentee:
Jacob Huber (exact or similar names) - Toledo, OH

USPTO Classifications:
81/137

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

Assignees:
Chas. P. Crosby - Chicago, IL
William F. Crosby - Chicago, IL

Manufacturer:
E. H. Pease Mfg. Co. - Racine, WI

Witnesses:
C. S. Curtis
B. G. Sweet
John Watson
P. B. Turpin
David C. Walter

Patent Dates:
Applied: Feb. 07, 1885
Granted: Jun. 16, 1885

Patent Pictures: [ 1 | 2 ]
Jacob Huber Pat. June 16, 1885
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Description:
The main shank has threads on two curved sides; the adjuster has interrupted threads allowing for combined quick and final screw adjustment. Marketed as the Crosby Rapid Transit Wrench. Marked only PAT JUNE 16, 1885.

Frank L. Smith's October 28, 1890 patent (No. 439,201) is very close in concept but differs in slight details.

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