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US Patent: 1,468,774
Inserted-Tooth Cutter
Patentee: Harry J. Caldwell (exact or similar names) - Rockford, Winnebago County, IL USPTO Classifications: 144/230, 175/384, 175/413, 407/38, 407/41 Tool Categories: metalworking machines : milling machines : milling machine cutters Assignees: Ingersoll Milling Machine Co. - Rockford, Winnebago County, IL Manufacturer: Ingersoll Milling Machine Co. - Rockford, Winnebago County, IL Witnesses: Unknown	Patent Dates: Applied: May 27, 1921 Granted: Sep. 25, 1923 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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