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US Patent: 2,257,849
Machine Tool Temperature Contol
Patentee: Mario E. Martellotti (exact or similar names) - Cincinnati, Hamilton County, OH USPTO Classifications: 409/135, 451/488, 451/7, 82/900 Tool Categories: metalworking machines : metalworking machine mechanisms : coolant apparatus industrial machines : industrial machine mechanisms : industrial control apparatus : temperature controls Assignees: Cincinnati Milling Machine Co. - Cincinnati, Hamilton County, OH Manufacturer: Cincinnati Milling Machine Co. - Cincinnati, Hamilton County, OH Witnesses: Unknown	Patent Dates: Applied: Mar. 20, 1940 Granted: Oct. 07, 1941 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.
Description: This patent number was seen on a Cincinnati Milling Machine Co. patent plate 4FV-101.

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