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US Patent: 21,342
Lifting Jack
Patentee:
Joel C. Jackson - Rochester, NY

USPTO Classifications:
254/133R, 254/92

Tool Categories:
specialty machines : elevators and lifts

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
John Phin
John G. Fargo

Patent Dates:
Granted: Aug. 31, 1858

Patent Pictures:
USPTO pdf tiff
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