Hydraulic control apparatus and systems
United States Patent 3141386
US Patent References:
Adjustable self-closing valve
- - 1560770

Flush valve
- - 2215133

Pump and motor hydraulic system
- - 2553045

Valve
- - 2607367

Hydraulic elevator control system
- - 2953902


Inventors:
Loughridge, Robert F.
Publication Date:
07/21/1964
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Assignee:
Loughridge, Robert F.
Primary Class:
Other Classes:
92/13.600, 251/63, 251/44, 91/417R, 91/47, 91/449, 92/107, 91/409
International Classes:
B66B1/04; B66B1/02
Foreign References:
GB803738A