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US Patent: 3,018,696
Keyway Cutting Machine
Patentee: Lawrence A. Attermeyer (exact or similar names) - Cincinnati, Hamilton County, OH USPTO Classifications: 408/69, 409/149, 409/159, 409/184, 409/194, 409/196 Tool Categories: metalworking machines : keyway cutting machines Assignees: Cincinnati Milling Machine Co. - Cincinnati, Hamilton County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Aug. 08, 1957 Granted: Jan. 30, 1962 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Cincinnati Milling Machine Co.

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