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US Patent: 2,497,247
Pump and Pressure Regulating Unit
Patentee: Adolf Von Wangenheim (exact or similar names) - Detroit, Wayne County, MI USPTO Classifications: 137/271, 210/136, 210/416.5, 417/303, 417/310, 418/268, 418/47 Tool Categories: industrial machines : pumps : vane pumps industrial tools : pressure regulators Assignees: Detroit Lubricator Co. - Detroit, Wayne County, MI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 16, 1944 Granted: Feb. 14, 1950 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Detroit Lubricator Co.
Description: Original application filed 19 Nov., 1942. Divided and this application filed 16 Mar., 1944.

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