Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: D108,143
Design for a Wrench Member
Patentee:
Sigmund Mandl - Milwaukee, WI

USPTO Classifications:
81/121.1, D8/29

Tool Categories:
wrenches : wrench components : wrench sockets

Assignees:
Blackhawk Mfg. Co. - Milwaukee, WI

Manufacturer:
Blackhawk Mfg. Co. - Milwaukee, WI

Witnesses:
Unknown

Patent Dates:
Applied: Feb. 27, 1937
Granted: Jan. 25, 1938

Patent Pictures:
Sigmund Mandl design patent Jan. 25, 1938
USPTO pdf tiff
Google Patents
Report data errors or omissions
Description:
The design is for a round socket with three grooves and a rounded taper in the body.

Alloy Artifacts shows the Blackhawk #401xx series sockets with the three rings on the drive end. The smallest sizes of the socket also have the rounded taper.

Copyright © 2002-2019 - DATAMP