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US Patent: 2,437,317
Spot milling tubular blank for propeller blades
Patentee:
Dwillard J. Davis (exact or similar names) - Cincinnati, OH

USPTO Classifications:
29/889.61, 408/16, 408/88, 409/184, 409/186

Tool Categories:
metalworking machines : milling machines

Assignees:
Avco Mfg. Corp. - Greenwich, CT

Manufacturer:
Cincinnati Bickford Tool Co. - Cincinnati, OH

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 08, 1945
Granted: Mar. 09, 1948

Patent Pictures:
USPTO (New site tip)
Google Patents
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