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US Patent: 403,294
Air and Gas Engine
Patentees: Albert Schmid (exact or similar names) - Allegheny, PA J. Charles Beckfeld (exact or similar names) - Allegheny, PA USPTO Classifications: 114/20.1, 60/39.11, 60/39.23, 60/39.24 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: May 17, 1888 Granted: May 14, 1889 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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