Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 1,877,348
Valve grinder
Patentees:
Edward Henry Peterson (exact or similar names) - Chicago, IL
Norris F. McNaught (exact or similar names) - Chicago, IL

USPTO Classifications:
451/117

Tool Categories:

Assignees:
Duro Metal Products Co. - Chicago, IL

Manufacturer:
Duro Metal Products Co. - Chicago, IL

Witnesses:
Unknown

Patent Dates:
Applied: Nov. 09, 1931
Granted: Sep. 13, 1932

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Duro Metal Products Co.

Copyright © 2002-2024 - DATAMP