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US Patent: 981,339
Internal Combustion Pressure Generator
Patentee: Edward C. Warren (exact or similar names) - Philadelphia, PA USPTO Classifications: 60/39.091, 60/39.58, 60/39.821 Tool Categories: propulsion and energy : gas generators Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jan. 22, 1904 Granted: Jan. 10, 1911 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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