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公开(公告)号：US2161699A
公开(公告)日：1939-06-06
申请号：US13981337
申请日：1937-04-29
Applicant: AUTOGIRO CO OF AMERICA
Inventor： JOHN JOSSELYN , REIGINALD BLAKE
CPC classification number: B64C27/023 , B64C27/008
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