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Patent number:
Patent Date:
US Patent: 1,121,671
Grinding attachment for hand drills
Patentee:
George H. Sawyer (
exact
or
similar
names) - Port Allegany, PA
USPTO Classifications:
16/DIG.023
,
433/135
,
433/166
,
451/342
,
451/541
Tool Categories:
handheld power tools
:
handheld power tool accessories
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
C. W. Catlin
G. H. Gentzer
Patent Dates:
Applied:
Mar. 28, 1914
Granted:
Dec. 22, 1914
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Description:
First attachment patent?
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