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US Patent: 743,019
Pipe Wrench
Patentee:
David Nelson (exact or similar names) - Reno, NV

USPTO Classifications:
81/111

Tool Categories:
wrenches : pipe wrenches

Assignees:
David Nelson - Reno, NV
Alonzo Rowell - Reno, NV

Manufacturer:
Not known to have been produced

Witnesses:
W. J. Macdonnall
C. D. Kesler
E. R. Dodge
Alonzo Rowell

Patent Dates:
Applied: May 19, 1902
Granted: Nov. 03, 1903

Patent Pictures:
David Nelson patent November 3, 1903
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Description:
An adjustable alligator wrench type pipe wrench. A pin with compression spring rocks the adjustable jaw against a second pin which holds the adjustment.

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