US Patent: 743,019 - Pipe Wrench


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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:

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.