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US Patent: 2,420,984
Hydraulic Pump
Patentee: Ralph H. Shepard (exact or similar names) - New York, NY USPTO Classifications: 417/500, 74/22R, 91/476 Tool Categories: industrial machines : pumps : hydraulic pumps Assignees: Nathan Mfg. Co. - New York, NY Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Oct. 25, 1945 Granted: May 20, 1947 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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