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CH Patent: CH-324,773
Mandrin pour machine-outil Machine tool chuck
Patentee: Oscar Amiet (exact or similar names) - Carouge-Genève, Switzerland USPTO Classifications: Tool Categories: metalworking machines : drilling and boring : drill presses : drill press chucks woodworking machines : wood drilling and boring : drill presses : drill press chucks Assignees: Christen & Cie AG - Berne, Switzerland Manufacturer: Christen & Cie AG - Berne, Switzerland Witnesses: Unknown	Patent Dates: Applied: Jun. 25, 1955 Granted: Oct. 15, 1957 Patent Pictures: Espacenet patent Report data errors or omissions to steward Jeff Joslin

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