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US Patent: 3,572,197
Adjustable Toolholder
Patentee: Robert M. Ortlieb (exact or similar names) - Southfield, Oakland County, MI USPTO Classifications: 403/118, 403/256, 403/320, 407/120, 407/86, 407/88, 408/240, 411/300, 411/941, 82/158 Tool Categories: metalworking machines : drilling and boring : drilling and boring tool holders Assignees: DeVlieg Machine Co. - Royal Oak, Oakland County, MI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 10, 1968 Granted: Mar. 23, 1971 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for DeVlieg Machine Co.

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