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US Patent: 2,139,173
Control Circuit for Broaching Machines
Patentees:
Millard Romaine (exact or similar names) - Cincinnati, Hamilton County, OH
Erwin G. Roehm (exact or similar names) - Norwood, Hamilton County, OH

USPTO Classifications:
91/443, 91/446, 91/461

Tool Categories:
metalworking machines : broaching machines
metalworking machines : machine tool controls
metalworking machines : metalworking machine mechanisms : hydraulic apparatus

Assignees:
Cincinnati Milling Machine Co. - Cincinnati, Hamilton County, OH

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 01, 1933
Granted: Dec. 06, 1938

Patent Pictures:
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Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Cincinnati Milling Machine Co.
Description:
Original application filed 01 Mar. 1933, now patent #2,063,756. Divided and this application filed 31 Mar., 1936.

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