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US Patent: 2,903,569
Method of Forming Spiral Blades
Patentees: Jacob M. Davis (exact or similar names) - Milwaukee, Milwaukee County, WI Gordon H. Hochmuth (exact or similar names) - West Allis, Milwaukee County, WI USPTO Classifications: 219/153, 219/602 Tool Categories: metalworking machines : milling machines : milling machine cutters Assignees: Kearney & Trecker Corp. - West Allis, Milwaukee County, WI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 18, 1956 Granted: Sep. 08, 1959 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Kearney & Trecker Co.

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