US Patent: 1,052,313 - Pipe-wrench


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US Patent: 1,052,313

Pipe-wrench

Patentee:

Addison B. Carll - Boothwyn, PA

USPTO Classifications:

81/100, 81/101, 81/165, 81/178

Tool Categories:

wrenches : pipe wrenches

Assignees:

None

Manufacturer:

Greenfield Tap & Die Corp. - Greenfield, MA

Witnesses:

Merle MacFarland

E. C. Duff

Patent Dates:
Applied:	Apr. 27, 1912
Granted:	Feb. 04, 1913

Patent Pictures: [ 1 | 2 ]

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Description:

10-inch long example reported with label, "GTD GREENFIELD, MASS, LITTLE GIANT". Made in 8, 10, 14, 18 and 24 inch sizes by Greenfield Tap and Die. The 8 and 10 inch sizes have two gripping faces on the main bar rather than four.