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US Patent: 722,144
Pipe Wrench
Patentee:
James J. Rhinelander - Butler, PA

USPTO Classifications:
81/68

Tool Categories:
wrenches : pipe wrenches : chain and strap wrenches

Assignees:
None

Manufacturer:
Standard Nipple Mfg. Co. - Pittsburgh, PA

Witnesses:
M. B. Schley
J. P. Appleman
Albert L. Bowser
W. A. Hauck

Patent Dates:
Applied: Sep. 20, 1902
Granted: Mar. 03, 1903

Patent Pictures: [ 1 | 2 | 3 ]
James J. Rhinelander Patent March 3, 1903
USPTO pdf tiff
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Description:
The chain pivots from the center line. The fixed jaws on the handle are bi-laterally symetrical with slots to catch the studs on the chain on both sides.

J. J. Rhinelander was general manager of the Standard Nipple Co. and C. Howard Hook was president.

Patent referenced in pat. no. 3,304,817.

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