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US Patent: 654,761
Combined Steam and Explosive Engine
Patentee:
George Palm (exact or similar names) - Butler, Butler County, PA

USPTO Classifications:
123/145R, 123/193.1, 123/41.31, 123/41.72, 123/41R, 123/63, 60/712, 92/208, 92/86

Tool Categories:
propulsion and energy : steam engines
propulsion and energy : internal combustion engines : gas and gasoline engines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 18, 1897
Granted: Jul. 31, 1900

Patent Pictures:
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