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US Patent: 1,659,426
Milling Machine
Patentee:
Conrad M. Conradson - Madison, Dane County, WI

USPTO Classifications:
409/156, 74/353

Tool Categories:
metalworking machines : milling machines

Assignees:
Joseph T. Ryerson & Son - Chicago, Cook County, IL

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 20, 1920
Granted: Feb. 14, 1928

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Joseph T. Ryerson & Son

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