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Automatic flushing system for gauge pipes on suction dredges
United States Patent 2553918
US Patent References:
Apparatus for the automatic operation of machines
- - 1878888
/2290626.html
- - 2290626
Liquid-gas-phase control
- - 2411986
Inventors:
Hofer, David L.
Publication Date:
05/22/1951
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Download PDF 2553918
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Assignee:
Hofer, David L.
Primary Class:
73/714
Other Classes:
73/302
International Classes:
E02F3/90
;
E02F3/88