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US Patent: 249,394
Pipe Wrench
Patentee:
Isaac Broadworth Potts (exact or similar names) - Columbus, OH

USPTO Classifications:
81/92

Tool Categories:
wrenches : pipe wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. Sedgwick
Theo. G. Koster
Geo. N. Thomas
J. F. Constans
Patent Dates:
Applied: Sep. 24, 1881
Granted: Nov. 08, 1881

Patent Pictures:
Isaac B. Potts patent November 8, 1881
USPTO (New site tip)
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Description:
The notch in the main shank, tooth on the movable jaw, and set screw are the main features of this patent.

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