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US Patent: 3,264,944
Fluid pump or motor having roller vanes
Patentees: George W. Brand (exact or similar names) - Racine, WI Philip Hartmann (exact or similar names) - Racine, WI USPTO Classifications: 418/161 Tool Categories: industrial machines : pumps : hydraulic pumps Assignees: Hartmann Manufacturing Co. - Racine, WI Manufacturer: Hartmann Manufacturing Co. - Racine, WI Witnesses: Unknown	Patent Dates: Applied: Apr. 15, 1964 Granted: Aug. 09, 1966 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Hartmann Vise Co.
Description: The Hartmann Mfg. Co. was earlier named the Hartmann Vise Co.

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