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US Patent: 1,961,461
Gas Engine Valve Gear
Patentee: Carl G. Sprado (exact or similar names) - Milwaukee, WI USPTO Classifications: 123/527 Tool Categories: propulsion and energy : internal combustion engines : internal combustion engine valves Assignees: Allis-Chalmers Co. - Milwaukee, WI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 11, 1930 Granted: Jun. 05, 1934 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Allis-Chalmers Manufacturing Co.

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