发明名称 Umbrellas
摘要 An umbrella comprises a cover of flexible material attached at its periphery to a resilient one-piece ring. A handle is connected at one end to the cover and at the other end to the ring and serves to support the umbrella in an open or erect position. The ring is sufficiently resilient to be twisted so as to form three loops for the purpose of storage and to return subsequently to its open position.
申请公布号 US4312371(A) 申请公布日期 1982.01.26
申请号 US19790050417 申请日期 1979.06.20
申请人 KOON, TAN C. 发明人 KOON, TAN C.
分类号 A45B11/00;A45B23/00;(IPC1-7):A45B11/00;A45B15/00 主分类号 A45B11/00
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