Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 642,797
Pipe Wrench
Patentee:
John O. Lawson (exact or similar names) - Brockton, MA

USPTO Classifications:
220/86.1, 81/65.4

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Henry F. Parker
Carl G. Smith
M. S. Morse
A. M. Tuttle
Patent Dates:
Applied: Apr. 21, 1899
Granted: Feb. 06, 1900

Patent Pictures:
John O. Lawson patent February 6, 1900
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Stan Schulz
Description:
Combination tongs and chain pipe wrench; the adjusting end of the chain attaches to a toothed block on the "upper" side.

Copyright © 2002-2024 - DATAMP