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1.发明授权Portable device for measuring and indicating the direction and velocity of wind 失效用于测量和指示风的方向和速度的便携式设备
公开(公告)号：US2623388A
公开(公告)日：1952-12-30
申请号：US11379249
申请日：1949-09-02
Applicant: BENDIX AVIAT CORP
Inventor： WOOD LOUVAN E , VINING JR L HEATH
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