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US Patent: 2,189,662
Liquid Level Control Means
Patentee: Andrew K. Foulds (exact or similar names) - Grosse Pointe Park, Wayne County, MI USPTO Classifications: 137/401, 137/418 Tool Categories: industrial machines : industrial machine mechanisms : industrial control apparatus : liquid level controls Assignees: Detroit Lubricator Co. - Detroit, Wayne County, MI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Aug. 05, 1936 Granted: Feb. 06, 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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