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GB Patent: GB-623,848
Improvements relating to electric motor control systems for electro-mechanical clamping means for workpieces in machine tools
Patentee: John Cyril Jones (exact or similar names) - Altrincham, England USPTO Classifications: Tool Categories: Assignees: Churchill Machine Tool Co., Ltd. - Altrincham, England Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 19, 1947 Granted: May 24, 1949 Patent Pictures: Espacenet patent Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Churchill Machine Tool Co., Ltd.

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