Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 2,967,444
Thread Rolling Machines
Patentees:
Elmer E. Hallberg - Rockford, Winnebago County, IL
Ralph S. Litterst - Rockford, Winnebago County, IL

USPTO Classifications:
221/237, 72/90

Tool Categories:
metalworking machines : thread rolling machines

Assignees:
Rockford Machine Tool Co. - Rockford, Winnebago County, IL

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jun. 03, 1955
Granted: Jan. 10, 1961

Patent Pictures:
USPTO pdf tiff
Google Patents
Report data errors or omissions
"Vintage Machinery" entry for Rockford Machine Tool Co.

Copyright © 2002-2017 - DATAMP