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发明名称
POLYGONAL BUILDING ELEMENTS WITH CONNECTORS THEREFOR FOR ASSEMBLING TOY STRUCTURES
摘要
申请公布号
US3564758(A)
申请公布日期
1971.02.23
申请号
USD3564758
申请日期
1968.09.04
申请人
ARTHUR N. WILLIS
发明人
ARTHUR N. WILLIS
分类号
A63H33/06;(IPC1-7):A63H33/10
主分类号
A63H33/06
代理机构
代理人
主权项
地址
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