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US Patent: 1,973,942
Socket Collet Structure
Patentee: Joseph F. Buhr (exact or similar names) - Ann Arbor, Washtenaw County, MI USPTO Classifications: 279/49 Tool Categories: metalworking machines : drilling and boring : drill presses : drill press accessories Assignees: Buhr Machine Tool Co. - Ann Arbor, Washtenaw County, MI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 28, 1932 Granted: Sep. 18, 1934 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Buhr Machine Tool Co

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