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US Patent: 825,779
Hydrocarbon Furnace
Patentees: Edward J. Vraalstad (exact or similar names) - Buffalo, Erie County, NY William L. Doyle (exact or similar names) - Buffalo, Erie County, NY USPTO Classifications: 431/171, 431/190 Tool Categories: propulsion and energy : steam apparatus : stationary boilers Assignees: Buffalo Pitts Co. - Buffalo, Erie County, NY Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 10, 1903 Granted: Jul. 10, 1906 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Buffalo Pitts Co.

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