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US Patent: 418,821
Gas Engine
Patentee:
James Downer Smith (exact or similar names) - Philadelphia, PA

USPTO Classifications:
123/143R, 123/146, 123/274, 123/292, 123/65VD, 123/70V, 123/90.28

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

Assignees:
James Downer Smith - Philadelphia, PA
Joseph L. Ferrell - Philadelphia, PA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 18, 1885
Granted: Jan. 07, 1890

Patent Pictures:
USPTO (New site tip)
Google Patents
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