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公开(公告)号：US2421620A
公开(公告)日：1947-06-03
申请号：US45676642
申请日：1942-08-31
Applicant: AUTOGIRO CO OF AMERICA
Inventor： RIEHARD HUBER JOHN
IPC: B64C27/32
CPC classification number: B64C27/32
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