US Patent: 390,402 - Pipe Wrench


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US Patent: 390,402

Pipe Wrench

Patentee:

James Rose (exact or similar names) - Franklin, MA

USPTO Classifications:

81/103, 81/173

Tool Categories:

wrenches : pipe wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Jun. 21, 1888
Granted:	Oct. 02, 1888

Patent Pictures:

James Rose patent October 2, 1888

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Description:

The frame holding the screw adjustment and the movable jaw attaches to the main bar at a single point. A spring on the main shank connects to the base of the adjusting screw.