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US Patent: 2,397,086
Method and Apparatus for Cutting Keyways
Patentee: Samuel G. Brady (exact or similar names) - Royal Oak, Oakland County, MI USPTO Classifications: 409/132, 409/224, 409/226, 451/214 Tool Categories: metalworking machines : milling machines : milling machine accessories Assignees: Gear Grinding Machine Co. - Hamtramck, Wayne County, MI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 27, 1943 Granted: Mar. 26, 1946 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Gear Grinding Machine Co.

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