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US Patent: 536,553
Chain Wrench
Patentee:
John H. Vinton (exact or similar names) - Boston, MA

USPTO Classifications:
81/65, 81/65.2

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

Assignees:
Trimont Manufacturing Company - Portland, ME

Manufacturer:
Not known to have been produced

Witnesses:
Edward F. Allen
Thomas J. Drummond
John C. Edwards
Augusta E. Dean
Patent Dates:
Applied: Jul. 27, 1894
Granted: Mar. 26, 1895

Patent Pictures:
John H. Vinton patent March 26, 1895
USPTO (New site tip)
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Description:
A right- and left-hand threaded screw provides adjustment for the "stirrup" connecting the fixed end of the chain to the handle.

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