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US Patent: 2,351,878
Controlling Means
Patentee: Philip S. Russel (exact or similar names) - Detroit, Wayne County, MI USPTO Classifications: 236/1A, 236/45, 318/767, 318/831, 388/833, 388/934, 417/316, 417/423.1 Tool Categories: industrial machines : industrial machine mechanisms : industrial control apparatus : flow controls Assignees: Detroit Lubricator Co. - Detroit, Wayne County, MI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 26, 1941 Granted: Jun. 20, 1944 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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