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US Patent: 593,970
Muffler for Gas Engines
Patentee: Charles A. Schwarm (exact or similar names) - Pittsburg, Allegheny County, PA USPTO Classifications: 181/269 Tool Categories: propulsion and energy : internal combustion engines : exhaust mechanisms Assignees: Charles A. Schwarm - Pittsburg, Allegheny County, PA George Trautman - Pittsburg, Allegheny County, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 28, 1896 Granted: Nov. 16, 1897 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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