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Patent number:
Patent Date:
US Patent: 614,112
Disk Sharpening Device
Patentee:
Thomas Knudtson (
exact
or
similar
names) - Malta, De Kalb County, IL
USPTO Classifications:
172/437
,
76/85
,
82/128
Tool Categories:
agricultural
:
sharpeners
Assignees:
Thomas Knudtson
- Malta, De Kalb County, IL
Theodore O. Berg
- Lee, Lee County, IL
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Jan. 11, 1897
Granted:
Nov. 15, 1898
Patent Pictures:
USPTO
(New site tip)
Google Patents
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