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US Patent: 2,625,797
Hydraulic eductor valve
Patentees:
Henry Harold Poort - Grand Haven, MI
James H. Shaver - Grand Haven, MI

USPTO Classifications:
417/182, 417/191, 417/76, 60/430, 60/481

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

Assignees:
Dake Engine Co. - Grand Haven, MI

Manufacturer:
Dake Corp. - Grand Haven, MI

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 15, 1952
Granted: Jan. 20, 1953

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Dake Corp.

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