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US Patent: 2,164,888
Variable Delivery Pump
Patentees: Bernard Sassen (exact or similar names) - Cincinnati, OH Hans Ernst (exact or similar names) - Cincinnati, OH Frederick S. Haas (exact or similar names) - Cincinnati, OH USPTO Classifications: 417/270, 91/487, 91/497, 91/498 Tool Categories: metalworking machines : grinding machines Assignees: Cincinnati Grinders, Inc. - Cincinnati, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 24, 1936 Granted: Jul. 04, 1939 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Cincinnati Grinders, Inc.

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