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US Patent: 1,229,352
Milling-machine
Patentee: Charles E. Van Norman (exact or similar names) - Springfield, MA USPTO Classifications: 409/211, 409/215 Tool Categories: metalworking machines : milling machines Assignees: Van Norman Machine Tool Co. - Springfield, MA Manufacturer: Van Norman Machine Tool Co. - Springfield, MA Witnesses: Unknown	Patent Dates: Applied: Jan. 22, 1910 Granted: Jun. 12, 1917 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Van Norman Machine Tool Co.
Description: This patent date was seen on a Van Norman #10 Duplex Milling Machine. The patent covers the change-speed gearbox.

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