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US Patent: 122,488
Improvement in horse-power jacks
Patentee:
Stuart Perry - Newport, NY

USPTO Classifications:
74/417

Tool Categories:
agricultural machines : animal powered apparatus
propulsion and energy : animal powered apparatus

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
George H. Hurlbert
John G. Barry

Patent Dates:
Granted: Jan. 02, 1872

Patent Pictures:
USPTO pdf tiff
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