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US Patent: 1,872,626
Hydraulic Valve
Patentees:
Hans Ernst (exact or similar names) - Cincinnati, Hamilton County, OH
Charles W. Goodrich (exact or similar names) - Cincinnati, Hamilton County, OH

USPTO Classifications:
251/281

Tool Categories:
metalworking machines : metalworking machine mechanisms : hydraulic apparatus

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

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

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 08, 1930
Granted: Aug. 16, 1932

Patent Pictures:
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"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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