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US Patent: 654,759
Duplex Steam Engine
Patentee:
John B. O'Donnell (exact or similar names) - Lee's Summit, Jackson County, MO

USPTO Classifications:
91/164, 91/8

Tool Categories:
propulsion and energy : steam engines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Sep. 22, 1899
Granted: Jul. 31, 1900

Patent Pictures:
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