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发明名称
Building block
摘要
申请公布号
US2459028(A)
申请公布日期
1949.01.11
申请号
US19460694906
申请日期
1946.09.05
申请人
HESTER RUMSELL P
发明人
HESTER RUMSELL P.
分类号
E04B2/02;E04B2/42
主分类号
E04B2/02
代理机构
代理人
主权项
地址
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