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Patent number:
Patent Date:
US Patent: 1,180,448
Power-grinder
Patentee:
Carl E. Shields (
exact
or
similar
names) - Rock Island, IL
USPTO Classifications:
451/341
Tool Categories:
metalworking machines
:
grinders
:
grindstone frames
propulsion and energy
:
human powered apparatus
Assignees:
None
Manufacturer:
Rock Island Manufacturing Co.
- Rock Island, IL
Witnesses:
F. W. Thieson
L. C. Downing
Patent Dates:
Applied:
Feb. 05, 1915
Granted:
Apr. 25, 1916
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Rock Island Mfg. Co.
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