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Patent number:
Patent Date:
US Patent: 1,486,844
Abrasive Wheel Dresser
Patentee:
Henry K. Spencer (
exact
or
similar
names) - Watertown, Jefferson County, MA
USPTO Classifications:
125/11.03
Tool Categories:
metalworking machines
:
grinders
:
grinder dressers
Assignees:
Blanchard Machine Co.
- Cambridge, Middlesex County, MA
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
May 10, 1921
Granted:
Mar. 11, 1924
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Blanchard Machine Co.
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