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US Patent: 1,143,691
Grinder Structure
Patentee: Adolph L. De Leeuw (exact or similar names) - Cincinnati, Hamilton County, OH USPTO Classifications: 451/363, 451/374, 451/405 Tool Categories: metalworking machines : grinders : tool grinders Assignees: Cincinnati Milling Machine Co. - Cincinnati, Hamilton County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 28, 1913 Granted: Jun. 22, 1915 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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