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US Patent: 507,436
Gas Engine
Patentees: Carl F. Hirsch (exact or similar names) - San Francisco, CA Adam Schilling (exact or similar names) - San Francisco, CA USPTO Classifications: 123/156, 123/344, 123/83 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: Aug. 05, 1891 Granted: Oct. 24, 1893 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
Description: Application filed 05 Aug 1891. Renewed 20 Sep 1893.

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