SLIDING SEAL AND VALVE FOR RECIPROCATING PUMP
United States Patent 3532446
Inventors:
Herreshoff, Francis L.
Publication Date:
10/06/1970
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Assignee:
Margrete, Stinnes L.
Primary Class:
Other Classes:
277/466
International Classes:
F04B9/14; F04B53/12; F04B9/00; F04B53/10; B61F15/22; F04B21/04
Foreign References:
| FR1354369A | ||||
| DE1147898B | ||||
| GB928876A | ||||
| CH417250A |