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US Patent: 1,276,274
Adjustable Pipe Wrench
Patentee:
Joseph Shaffer (exact or similar names) - McKittrick, CA

USPTO Classifications:
81/415, 81/426

Tool Categories:
wrenches : pipe wrenches : pipe tongs

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
L. B. Middleton
Chas E. Kemper
Ray M. Bannon
Jack Wilkinson
Patent Dates:
Applied: May 02, 1917
Granted: Aug. 20, 1918

Patent Pictures:
Joseph Shaffer patent August 20, 1918
USPTO (New site tip)
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Description:
A tongs-like form with odd jaw conformation. The design as shown would be extremely unwieldy.

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