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发明名称
Toy building blocks
摘要
申请公布号
US2968118(A)
申请公布日期
1961.01.17
申请号
US19560591960
申请日期
1956.06.18
申请人
HALSAM PRODUCTS COMPANY
发明人
PAULSON NILS I.
分类号
A63H33/08
主分类号
A63H33/08
代理机构
代理人
主权项
地址
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