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US Patent: 2,180,802
Control Device
Patentee: Earnest J. Dillman (exact or similar names) - Detroit, Wayne County, MI USPTO Classifications: 236/68B, 337/107, 337/109, 337/112, 337/87, 337/93, 337/94, 337/96, 74/568R Tool Categories: specialty machines : heating apparatus : thermostats Assignees: Detroit Lubricator Co. - Detroit, Wayne County, MI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 03, 1936 Granted: Nov. 21, 1939 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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