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US Patent: 2,281,400
Lubricating Device
Patentee: Henry R. Welby (exact or similar names) - Detroit, Wayne County, MI USPTO Classifications: 184/3.2 Tool Categories: transportation : railroads : flange lubricators Assignees: Detroit Lubricator Co. - Detroit, Wayne County, MI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 10, 1940 Granted: Apr. 28, 1942 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Detroit Lubricator Co.

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