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US Patent: 123,614
Improvement in horse-powers
Patentee:
Thomas Curtis Churchman (exact or similar names) - Sacramento, CA

USPTO Classifications:
74/417

Tool Categories:
propulsion and energy : animal powered apparatus

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Samuel Cross
Walter S. Jeans
Patent Dates:
Granted: Feb. 13, 1872

Patent Pictures:
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