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US Patent: 18,592
Lifting Jack
Patentee:
Lucius J. Knowles (exact or similar names) - Warren, Worcester County, MA

USPTO Classifications:
254/100, 74/578, 81/63.2

Tool Categories:
material handling : jack screws
industrial tools : lifting tools

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Nov. 10, 1857

Patent Pictures:
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