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US Patent: 1,776,241
Grinding Machinery
Patentees: John E. Caster (exact or similar names) - Cincinnati, OH Fred S. Haas (exact or similar names) - Cincinnati, OH USPTO Classifications: 451/218, 451/243, 451/397 Tool Categories: metalworking machines : grinding machines Assignees: Cincinnati Grinders, Inc. - Cincinnati, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Aug. 05, 1927 Granted: Sep. 16, 1930 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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