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US Patent: 2,706,892
Tracer Control Circuit for Pattern Controlled Machines
Patentees: Hans Fritschi (exact or similar names) - Amberley Village, Hamilton County, OH Albert H. Dall (exact or similar names) - Cincinnati, Hamilton County, OH USPTO Classifications: 173/152, 173/44, 409/79, 91/178, 91/36, 91/37 Tool Categories: metalworking machines : profiling machines metalworking machines : metalworking machine mechanisms Assignees: Cincinnati Milling Machine Co. - Cincinnati, Hamilton County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Oct. 12, 1953 Granted: Apr. 26, 1955 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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