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US Patent: 610,831
Pipe Wrench
Patentee:
Ozias F. Roberts (exact or similar names) - Jacksonville, FL

USPTO Classifications:
81/129.5, 81/356, 81/362, 81/391, 81/427

Tool Categories:
wrenches : pipe wrenches
wrenches : wrench adjustment types : auxiliary levers on wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Harry L. Ames
C. E. Hunt
J. Haltman
Thomas Ellis Wood

Patent Dates:
Applied: Jan. 26, 1898
Granted: Sep. 13, 1898

Patent Pictures:
Ozias F. Roberts patent September 13, 1898
USPTO (New site tip)
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Description:
A clamping lever in a frame holds the adjustment of the two shank sections to set the size. An auxiliary lever on the movable jaw provides the final grip to hold pipe.

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