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Dredge pump seal
US 3,020,850 A
Filed
: 02/27/1958
Issued
: 02/13/1962
Est. Priority Date
: 02/27/1958
Status: Expired due to Term
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Current Assignee
John W. Meckenstock
Original Assignee
John W. Meckenstock
Inventors
Meckenstock, John W.
Application Number
US03/717,900
Time in Patent Office
1,447 Days
Field of Search
US Class Current
415/110
CPC Class Codes
F04D 29/167
of a centrifugal flow wheel
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