发明名称 Child's activity ring toy
摘要 A child's activity ring toy having first and second concentric ring portions, at least a part of at least one of the ring portions having thread segments along a multiple screw path with adjacent thread segments of adjacent screw paths overlapping in the axial direction. A figure is mounted on this threaded part of the ring with an opening therein configured for engaging a next thread segment in the axial direction as a previous thread segment is disengaged.
申请公布号 US4655723(A) 申请公布日期 1987.04.07
申请号 US19850713140 申请日期 1985.03.18
申请人 MATTEL, INC. 发明人 MARASON, JR., GABRIEL;TEMPLETON, JAMES S.
分类号 A63H5/00;A63H33/00;(IPC1-7):A63H15/00 主分类号 A63H5/00
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