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US Patent: 2,329,040
Lubricator Oil Control Valve
Patentee: Bengt E. Folke (exact or similar names) - Mamaroneck, Westchester County, NY USPTO Classifications: 137/506, 184/39.1 Tool Categories: industrial tools : tool lubricators : lubricating accessories Assignees: Nathan Mfg. Co. - New York, NY Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 08, 1942 Granted: Sep. 07, 1943 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Nathan Mfg. Co.

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