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US Patent: 897,599
Lubricator
Patentee: Robert Davidson (exact or similar names) - Detroit, Wayne County, MI USPTO Classifications: 184/50.1 Tool Categories: transportation : railroads : railroad locomotives : steam engine lubricators Assignees: Michigan Lubricator Co. - Detroit, Wayne County, MI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 23, 1906 Granted: Sep. 01, 1908 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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