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发明名称
Process of producing waterproof concrete, specially for pavings
摘要
申请公布号
US1760214(A)
申请公布日期
1930.05.27
申请号
US19280260809
申请日期
1928.03.10
申请人
RICHARD SCHUBERT
发明人
SCHUBERT RICHARD
分类号
C04B28/02
主分类号
C04B28/02
代理机构
代理人
主权项
地址
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