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GB Patent: GB-414,456
Improvements relating to variable speed mechanisms
Patentee: Isaac Henry Wright (exact or similar names) - Birmingham, England USPTO Classifications: Tool Categories: metalworking machines : metalworking machine mechanisms : metalworking machine gearing Assignees: James Archdale & Co. Ltd. - Birmingham, England Manufacturer: James Archdale & Co. Ltd. - Birmingham, England Witnesses: Unknown	Patent Dates: Applied: Mar. 17, 1933 Granted: Aug. 09, 1934 Patent Pictures: Espacenet patent Report data errors or omissions to steward Jeff Joslin "Vintage Machinery" entry for James Archdale & Co.

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