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US Patent: 482,281
Wrench
Improvements in Pipe-Wrenches
Patentee:
George B. Stevenson - Chicago, IL

USPTO Classifications:
81/101

Tool Categories:
wrenches : pipe wrenches

Assignees:
None

Manufacturer:
American Saw Co. - Trenton, NJ

Witnesses:
K. F. Matthews
C. H. Raeder
S. P. Hammond
Alice McDermott

Patent Dates:
Applied: May 04, 1892
Granted: Sep. 06, 1892

Patent Pictures: [ 1 | 2 | 3 ]
George B. Stevenson patent September 6, 1892
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Description:
The "tail" of the movable jaw is enclosed within the hollow shell which also holds the adjusting ring. All-metal and wood handle versions were produced. Advertised as the TRIUMPH PIPE WRENCH and the STEVENSON WRENCH. A 1906 catalog listing shows it as the STAR PIPE WRENCH.

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