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US Patent: 2,823,447
Vertical Ejector Tool Holder
Patentees: Paul Doersein (exact or similar names) - Haledon, Passaic County, NJ Kenneth P. Doersein (exact or similar names) - Haledon, Passaic County, NJ USPTO Classifications: 407/101, 407/87, 407/91 Tool Categories: metalworking machines : metalworking machine tool holders : insert tool holders Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 27, 1953 Granted: Feb. 18, 1958 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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