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US Patent: 260,743
Tap Wrench
Patentee:
Malcolm Campbell (exact or similar names) - Holyoke, MA

USPTO Classifications:
408/240, 411/397

Tool Categories:
wrenches : tap wrenches and die stocks

Assignees:
Malcolm Campbell - Holyoke, MA
Edward S. Packard - Holyoke, MA

Manufacturer:
Not known to have been produced

Witnesses:
John J. Reardon
H. H. Tuworgy
Patent Dates:
Applied: Apr. 21, 1882
Granted: Jul. 11, 1882

Patent Pictures:
Malcolm Campbell patent July 11, 1882
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Description:
The patent is for the components of the adjusting screw, and the details of the slides that connect the jaw segments to the frame.

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