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Air flow seal for air filter having an expansible-contractible air cleaning web
US 2,881,861 A
Filed
: 02/18/1957
Issued
: 04/14/1959
Est. Priority Date
: 02/18/1957
Status: Expired due to Term
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Current Assignee
Ivan W. Dyer
Original Assignee
Ivan W. Dyer
Inventors
Dyer, Ivan W.
Application Number
US03/640,715
Time in Patent Office
785 Days
Field of Search
US Class Current
55/354
CPC Class Codes
B01D 46/18
Particle separators, e.g. d...
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