Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first  previous  back  next  last
US Patent: 133,422
Wrenches
Patentee:
Frank Leo Delfer (exact or similar names) - Burlington, IA

USPTO Classifications:
134/167R, 81/145, 81/170, 81/186, 81/DIG.4

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches
wrenches : wrench components : wrench jaw components

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Geo. Bartle
R. D. O. Smith
J. C. Lyons
O. B. Ventre
Patent Dates:
Granted: Nov. 26, 1872

Patent Pictures: [ 1 | 2 ]
F. L. Delfer Pat. Nov. 26, 1872
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Stan Schulz
Description:
The wrench has combined quick and screw adjust. The unique feature is specialized jaw shapes coordinated with specialized nut shapes with the intent of having the wrench hold nuts without employing a clamping action.

Copyright © 2002-2025 - DATAMP