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US Patent: 444,255
Pipe Wrench
Patentee:
George F. Shaw (exact or similar names) - Dedham, MA

USPTO Classifications:
81/91.2

Tool Categories:
wrenches : wrench adjustment types : self-adjust wrenches
wrenches : pipe wrenches

Assignees:
George F. Shaw - Dedham, MA
Charles G. Smith - Somerville, MA
Benjamin F. Smith - Somerville, MA
George G. Procter - Boston, MA

Manufacturer:
Not known to have been produced

Witnesses:
Alice A. Perkins
Thomas W. Hobday
Alban Andren
Patent Dates:
Applied: Oct. 06, 1890
Granted: Jan. 06, 1891

Patent Pictures:
George F. Shaw patent January 6, 1891
USPTO (New site tip)
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Description:
Compound links; self-adjusting pipe wrench.

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