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US Patent: 519,880
Gas Engine
Patentee:
Hadwin Swain - San Francisco, CA

USPTO Classifications:
123/332, 123/346

Tool Categories:
propulsion and energy : internal combustion engines : governors

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Aug. 22, 1893
Granted: May 15, 1894

Patent Pictures:
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