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VANE SEAL
US 3,489,339 A
Filed
: 04/16/1968
Issued
: 01/13/1970
Est. Priority Date
: 04/16/1968
Status: Expired due to Term
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Current Assignee
Harold A. Greenwald
Original Assignee
Harold A. Greenwald
Inventors
Greenwald, Harold A.
Application Number
US04/721,747
Time in Patent Office
637 Days
Field of Search
US Class Current
415/163
CPC Class Codes
F04D 29/083
especially adapted for elas...
F04D 29/46
adjustable
F04D 29/462
especially adapted for elas...
F04D 29/466
especially adapted for liqu...
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