留学的利弊专利名称：Ring toss game with swivel collar 发明人：Anthony R. Montagna
初中物理电学公式大全
申请号：US05/867085
申请日：19780105
公开号：US04132410A万众一心是什么意思
公开日：
wallace19790102
traffic lights什么意思女乘务员专利内容由知识产权出版社提供一定量的液态化合物
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摘要：An improved ring toss game apparatus of the type having a post member with radially projecting arm members and a plurality of ring members to be tosd thereat. The post member of this invention includes a swivel collar member having a radially projecting arm thereon with the post member positioned in either an indoor or outdoor support ba. The ring members have a circular central opening concentric with the exterior of the ring member, the top of which when viewed in cross-ction forms a half-circle and the bottom of the ring member forming a concave indentation concentric with the top half-circle.
申请人：MONTAGNA; ANTHONY R.
奉献演讲稿
evenso代理人：William Nitkin
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