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US Patent: 615,926
Pipe Wrench
Patentee:
William Tyack (exact or similar names) - Chicago, IL

USPTO Classifications:
81/90.2, 81/90.3

Tool Categories:
wrenches : pipe wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Alberta Adamick
Fred Gerlact
Geo. P. Fisher, Jr.
Patent Dates:
Applied: Aug. 15, 1898
Granted: Dec. 13, 1898

Patent Pictures:
William Tyack patent December 13, 1898
USPTO (New site tip)
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Description:
The wrench features a pivoted "V" inner jaw and a swinging hook jaw.

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