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US Patent: 2,197,262
Control Device
Patentee: Philip S. Russel (exact or similar names) - Detroit, Wayne County, MI USPTO Classifications: 137/400, 137/409, 137/589, 137/590 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. 02, 1937 Granted: Apr. 16, 1940 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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