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US Patent: 405,795
Gas or Hydrocarbon Vapor Engine
Patentees: Lewis C. Parker (exact or similar names) - Kansas City, MO Beaumont Parker (exact or similar names) - Kansas City, MO USPTO Classifications: 123/146, 123/65VB, 123/70V Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 11, 1889 Granted: Jun. 25, 1889 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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