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专利名称：FLYING DEVICE发明人：KEITH C,US申请号：US37423D申请日：19720505公开号：US37423A公开日：19730703
摘要：A flying device adapted to be thrown manually in a spinning fashion includes ahub, an intermediate ring and an outer ring. Between the inner and intermediate rings area plurality of variable pitch radially extending vanes adapted to be adjusted as desired.The intermediate and outer rings are coupled by support members to allow the user tograsp the device by holding the outer ring.
申请人：KEITH C,US
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