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Multistage air moving device
US 3,084,850 A
Filed
: 04/26/1961
Issued
: 04/09/1963
Est. Priority Date
: 04/26/1961
Status: Expired due to Term
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42 Citations
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Current Assignee
Engalitcheff J.R. John
Original Assignee
Engalitcheff J.R. John
Inventors
ENGALITCHEFF JR JOHN
Application Number
US04/105,646
Time in Patent Office
713 Days
Field of Search
US Class Current
415/193
CPC Class Codes
F04D 19/007
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