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US Patent: 814,016
Lubricator
Patentees: William E. Bryant (exact or similar names) - Detroit, Wayne County, MI George M. Wolcott (exact or similar names) - Detroit, Wayne County, MI Robert Davidson (exact or similar names) - Detroit, Wayne County, MI USPTO Classifications: 184/50.1, 184/53, 184/96 Tool Categories: transportation : railroads : railroad locomotives : steam engines Assignees: Michigan Lubricator Co. - Detroit, Wayne County, MI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 23, 1904 Granted: Mar. 06, 1906 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Michigan Lubricator Co.

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