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US Patent: 1,536,736
Process of Making Milling Cutters
Patentees:
Paul F. Vokal (exact or similar names) - Hartford, Hartford County, CT
Albert W. Erdman (exact or similar names) - Hartford, Hartford County, CT

USPTO Classifications:
451/47, 451/48, 76/108.1, 76/115

Tool Categories:
metalworking machines : milling machines : milling machine cutters

Assignees:
Pratt & Whitney Co. - New York, NY

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: May 24, 1921
Granted: May 05, 1925

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Pratt, Whitney & Co.

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