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经营范围
发明名称
Interlocking building unit and hollow wall construction
摘要
申请公布号
US2687034(A)
申请公布日期
1954.08.24
申请号
US19500178236
申请日期
1950.08.08
申请人
SAMUEL BLANC
发明人
BLANC SAMUEL
分类号
E04B2/02;E04B2/18
主分类号
E04B2/02
代理机构
代理人
主权项
地址
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