Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 876,927
Chain Pipe Wrench
Patentee:
George Amborn - New York, NY

USPTO Classifications:
81/70

Tool Categories:
wrenches : pipe wrenches : chain and strap wrenches

Assignees:
J. H. Williams & Co. - Brooklyn, NY

Manufacturer:
J. H. Williams & Co. - Brooklyn, NY

Witnesses:
Eugene V. Myers
Theodore T. Snell
E. O. Mitchell
Fred White

Patent Dates:
Applied: May 06, 1907
Granted: Jan. 21, 1908

Patent Pictures:
George Amborn patent January 21, 1908
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
Amborn received three interrelated patents on Jan. 21, 1908 -- 876,925, 876,926, and this patent. This patent shares reversible jaw plates with pat. no. 876,926. The reversible jaw pieces were the main feature of Williams' VULCAN BIJAW chain wrenches which were introduced in spring, 1910. The inner face of the jaw plates has a different form of hooks.

Later modifications and improvements received patent nos. 1,146,119 and 1,146,120.

Arthur C. Fraser & Co. - patent attorneys

Copyright © 2002-2019 - DATAMP