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US Patent: 425,116
Gas Engine
Patentees:
Joseph R. Valentine - Pueblo, Pueblo County, CO
Alexander T. Griggs - Pueblo, Pueblo County, CO

USPTO Classifications:
123/255, 123/298, 123/65VD, 123/68

Tool Categories:
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. 24, 1889
Granted: Apr. 08, 1890

Patent Pictures:
USPTO pdf tiff
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