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US Patent: 331,627
Wrench
Patentee:
Frederick Farrar (exact or similar names) - Boston, MA

USPTO Classifications:
81/163, 81/177.9

Tool Categories:
wrenches : wrench adjustment types : angle adjustable wrenches

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Fred L. Emery
Arthur Lipperten
B. J. Noyes
Simon W. Hatheway
Patent Dates:
Applied: Mar. 09, 1885
Granted: Dec. 01, 1885

Patent Pictures: [ 1 | 2 ]
Frederick Farrar patent December 1, 1885
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Description:
Screw-adjustable jaws on an angle-adjustable head.

A known example has no visible markings.

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