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US Patent: 2,224,377
Refrigerating Apparatus
Patentee: George H. Clark (exact or similar names) - Detroit, Wayne County, MI USPTO Classifications: 137/340, 137/375, 137/382, 137/494, 137/561R, 137/599.01, 137/881, 251/57, 62/212, 62/225, 62/511 Tool Categories: specialty machines : refrigeration apparatus Assignees: Detroit Lubricator Co. - Detroit, Wayne County, MI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 23, 1939 Granted: Dec. 10, 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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