Home
|
FAQ
Search:
Advanced
|
Person
|
Company
|
Type
|
Class
Login
Quick search:
Patent number:
Patent Date:
US Patent: 1,689,176
Grinding Machine
Patentee:
Henry K. Spencer (
exact
or
similar
names) - Watertown, Middlesex County, MA
USPTO Classifications:
29/DIG.88
,
409/135
,
451/292
,
451/385
,
451/455
Tool Categories:
metalworking machines
:
grinders
:
surface grinders
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Feb. 17, 1923
Granted:
Oct. 23, 1928
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
Copyright © 2002-2024 - DATAMP