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Aircraft
US 3,397,852 A
Filed
: 08/30/1966
Issued
: 08/20/1968
Est. Priority Date
: 08/30/1966
Status: Expired due to Term
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Current Assignee
Sol Katzen
Original Assignee
Sol Katzen
Inventors
Katzen, Sol
Application Number
US04/576,037
Time in Patent Office
721 Days
Field of Search
US Class Current
244/12.3
CPC Class Codes
B64C 29/0025
the propellers being fixed ...
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