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发明名称
Method of producing upright hollow walls of reinforced concrete
摘要
申请公布号
US2666974(A)
申请公布日期
1954.01.26
申请号
US19510230910
申请日期
1951.06.11
申请人
GERALD LEANSE LEON
发明人
LEANSE LEON GERALD
分类号
E04G11/18
主分类号
E04G11/18
代理机构
代理人
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地址
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