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Patent number:
Patent Date:
US Patent: 600,158
Ratchet Wrench
Patentee:
Robert J. Miller (
exact
or
similar
names) - Placerville, CA
USPTO Classifications:
81/163
,
81/63
Tool Categories:
wrenches
:
ratchet wrenches
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
John C. Wilson
Percy C. Bowen
Abe Darlington
Chas. H. Wenthenoux
Patent Dates:
Applied:
May 11, 1897
Granted:
Mar. 08, 1898
Patent Pictures:
Robert J. Miller patent March 8, 1898
USPTO
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Description:
Reversible ratchet with screw-adjustable jaws in the ratchet head. The adjusting screw has left- and right-hand threads, with a center pinion that is turned by a gear / thumb piece that extends through the back of the ratchet head.
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