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US Patent: 1,938,780
Power Operated Clutch for Machine Tools
Patentees:
Lester F. Nenninger (exact or similar names) - Cincinnati, Hamilton County, OH
Bernard Sassen (exact or similar names) - Cincinnati, Hamilton County, OH

USPTO Classifications:
192/109F, 192/30W, 192/48.614, 192/85.21, 192/85.24, 192/85.63, 74/333

Tool Categories:
metalworking machines : metalworking machine mechanisms : metalworking power transmission

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

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

Witnesses:
Unknown

Patent Dates:
Applied: Dec. 02, 1930
Granted: Dec. 12, 1933

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Cincinnati Milling Machine Co.
Description:
This patent number was seen on a Cincinnati Milling Machine Co. patent plate 4FV-101.

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