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US Patent: 151,129
Petroleum Dynamic Engines
Patentee: Julius Hock (exact or similar names) - Vienna, Austria USPTO Classifications: 123/144, 123/533, 137/53 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: Feb. 19, 1874 Granted: May 19, 1874 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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