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US Patent: 2,778,925
Electrical Discharge Cutting Machine
Patentees: John G. Gross (exact or similar names) - Cincinnati, Hamilton County, OH Henry Gill (exact or similar names) - Cincinnati, Hamilton County, OH USPTO Classifications: 219/69.15 Tool Categories: metalworking machines : electrical discharge machining Assignees: Cincinnati Milling Machine Co. - Cincinnati, Hamilton County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 25, 1955 Granted: Jan. 22, 1957 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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