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US Patent: 580,445
Motor Engine
Patentees: Francis G. Bates (exact or similar names) - Philadelphia, PA Frank H. Bates (exact or similar names) - Philadelphia, PA USPTO Classifications: 123/188.4, 123/196R, 123/198R, 123/41.76, 123/58.9, 123/668, 123/68 Tool Categories: propulsion and energy : internal combustion engines Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 15, 1896 Granted: Apr. 13, 1897 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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