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Patent number:
Patent Date:
US Patent: 1,304,799
Double-head grinding machine
Patentee:
Charles H. Norton (
exact
or
similar
names) - Worcester, MA
USPTO Classifications:
384/263
,
451/249
,
451/399
Tool Categories:
metalworking machines
:
grinders
:
cylindrical grinders
Assignees:
Norton Grinding Co.
- Worcester, MA
Manufacturer:
Norton Grinding Co.
- Worcester, MA
Witnesses:
Clayton L. Jenks
Lewis F. Butterfield
Patent Dates:
Applied:
Jul. 01, 1917
Granted:
May 27, 1919
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Norton Co.
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