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US Patent: 1,438,250
Work Support
Patentee: Arthur H. Lyon (exact or similar names) - Rockford, Winnebago County, IL USPTO Classifications: 269/234, 269/309, 269/90, 279/2.11, 279/79, 409/903 Tool Categories: work holding metalworking machines : milling machines Assignees: Ingersoll Milling Machine Co. - Rockford, Winnebago County, IL Manufacturer: Ingersoll Milling Machine Co. - Rockford, Winnebago County, IL Witnesses: Unknown	Patent Dates: Applied: May 23, 1921 Granted: Dec. 12, 1922 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Ingersoll Milling Machine Co.

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