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Patent number:
Patent Date:
US Patent: 1,598,088
Mechanical movement
Patentees:
James S. Knowlson (
exact
or
similar
names) - Oak Park, IL
James Larocca (
exact
or
similar
names) - Chicago, IL
USPTO Classifications:
173/118
,
173/128
,
173/98
Tool Categories:
handheld power tools
:
handheld impact tools
:
impact chisels and drills
Assignees:
Electro-Magnetic Tool Co.
- Chicago, IL
Manufacturer:
Electro-Magnetic Tool Co.
- Cicero, IL
Witnesses:
Unknown
Patent Dates:
Applied:
Jul. 03, 1922
Granted:
Aug. 31, 1926
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Electro-Magnetic Tool Co.
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