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US Patent: 3,443,153
E. D. M. Power Supply with Current Adjusting Circuitry Responsive to Gap Condition
Patentee: Philip E. Berghausen (exact or similar names) - Cincinnati, Hamilton County, OH USPTO Classifications: 219/69.13, 315/224, 315/227A, 315/269 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: Oct. 23, 1967 Granted: May 06, 1969 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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