Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 754,063
Wrench
Patentees:
Charles E. Hawkins - East Pittsburg, Allegheny County, PA
Frank Cary - Wilkinsburg, Allegheny County, PA

USPTO Classifications:
81/156

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

Assignees:
None

Manufacturer:
Unknown

Witnesses:
H. C. Evert
E. E. Potter
K. H. Butler

Patent Dates:
Applied: Apr. 10, 1903
Granted: Mar. 08, 1904

Patent Pictures:
Charles E. Hawkins and Frank Cary patent March 8, 1904 with 12 inch example photo courtesy Les Williams
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
Combination quick and screw-adjustment; a spring-loaded lever in the forward portion of the movable jaw has teeth that can be lifted away from the adjusting screw for quick adjustment.

A known example has the patent date prominently cast into the handle.

H. C. Evert & Co. - patent attorneys

Copyright © 2002-2019 - DATAMP