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US Patent: 396,970
Wrench
Patentee:
John Van Ausdall (exact or similar names) - Keokuk, IA

USPTO Classifications:
81/179

Tool Categories:
wrenches : pipe wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
H. E. Peck
Josh P. Jackwood
W. L. McNamara
John L. Finigan
Patent Dates:
Applied: Nov. 08, 1886
Granted: Jan. 29, 1889

Patent Pictures:
John Van Ausdall patent January 29, 1889
USPTO (New site tip)
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Description:
A sliding wedge-shaped jaw face with gripping teeth is intended to grip pipe without "locking."

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