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GB Patent: GB-559,321
Improvements in or relating to "knurling" or like machines
Patentee: William Henry Spivey (exact or similar names) - Middlesex, England USPTO Classifications: Tool Categories: metalworking machines : embossing and knurling machines Assignees: Smart & Brown (Engineers), Ltd. - London, England Manufacturer: Smart & Brown (Engineers), Ltd. - London, England Witnesses: Unknown	Patent Dates: Applied: Nov. 02, 1942 Granted: Feb. 14, 1944 Patent Pictures: Espacenet patent Report data errors or omissions to steward Jeff Joslin "Vintage Machinery" entry for Smart & Brown (Engineers), Ltd.

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