Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 326,978
Pipe Wrench
Improvement in Pipe-Tongs
Patentee:
William Harris (exact or similar names) - Pittsburgh, PA

USPTO Classifications:
81/178, 81/423

Tool Categories:
wrenches : pipe wrenches : pipe tongs
wrenches : wrench components : wrench jaw components

Assignees:
None

Manufacturer:
Wm. Harris and Son - Pittsburgh, PA

Witnesses:
Walter Reese
W. M. Gormly
H. Ahlers

Patent Dates:
Applied: Jul. 13, 1885
Granted: Sep. 29, 1885

Patent Pictures:
William Harris patent September 29, 1885
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Stan Schulz
Description:
The gripping bit is a hardened piece held to the end of of the jaw by a collar and tapered drive pin.

Copyright © 2002-2024 - DATAMP