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US Patent: 2,951,342
Electro-hydraulic servo system
Patentees:
David E. Lundeen - Sidney, OH
Wayne H. Ulman - Clinton Township, OH
Nagle V. Gusching - Clinton Township, OH
Harold E. Boyer - Anna, OH

USPTO Classifications:
60/368, 91/183, 91/36, 91/420, 91/459

Tool Categories:

Assignees:
Monarch Machine Tool Co. - Sidney, OH

Manufacturer:
Monarch Machine Tool Co. - Sidney, OH

Witnesses:
Unknown

Patent Dates:
Applied: Nov. 14, 1957
Granted: Sep. 06, 1960

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Monarch Machine Tool Co.

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