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Patent number:
Patent Date:
US Patent: 1,151,232
Lifting-jack
Patentees:
Isaiah E. Hindman (
exact
or
similar
names) - Oakmont, PA
Walter McH. Alston (
exact
or
similar
names) - Ben Avon, PA
USPTO Classifications:
254/134
,
254/97
Tool Categories:
Assignees:
Duff Mfg. Co.
- Pittsburgh, PA
Manufacturer:
Duff Mfg. Co.
- Pittsburgh, PA
Witnesses:
Jacob Wittmer
George A. Young
Patent Dates:
Applied:
Jan. 26, 1915
Granted:
Aug. 24, 1915
Patent Pictures:
USPTO
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Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Duff Mfg. Co.
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