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Patent number:
Patent Date:
US Patent: 293,400
Lifting-jack
Patentee:
Josiah Barrett (
exact
or
similar
names) - Allegheny, PA
USPTO Classifications:
254/110
Tool Categories:
metalworking tools
:
lifting jacks
Assignees:
Duff Mfg. Co., Ltd.
- Allegheny, PA
Manufacturer:
Duff Mfg. Co., Ltd.
- Allegheny, PA
Witnesses:
Louis Moeser
T. F. Lehmann
Patent Dates:
Applied:
Dec. 14, 1883
Granted:
Feb. 12, 1884
Reissue Information:
Reissued as
RE10,574
(Mar. 24, 1885)
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Duff Mfg. Co.
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