Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 207,182
Pipe-Wrench
Improvements in Pipe and Nut Wrenches
Patentee:
Benjamin S. Hyers - Pekin, IL

USPTO Classifications:
81/117

Tool Categories:
wrenches : pipe and nut combination wrenches
wrenches : alligator wrenches
wrenches : wrench adjustment types : self-adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Will W. Dodge
Donn P. Twitchell
John Velde
Jacob A. Roelfs

Patent Dates:
Applied: Jun. 08, 1878
Granted: Aug. 20, 1878

Patent Pictures:
Benjamin S. Hyers patent August 20, 1878
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
The double linkage changes the distance between the jaws as the movable jaw partially rotates in relation to the fixed jaw.

Copyright © 2002-2017 - DATAMP