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Patent number:
Patent Date:
US Patent: 2,231,047
Hydraulic jack
Patentee:
Adam Ziska (
exact
or
similar
names) - Wauwatosa, WI
USPTO Classifications:
254/2B
Tool Categories:
Assignees:
American Grinder & Specialty Corp.
- Fond du Lac, WI
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Jul. 14, 1939
Granted:
Feb. 11, 1941
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for American Grinder & Specialty Corp.
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