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经营范围
发明名称
Process of repairing masonry structures
摘要
申请公布号
US1883196(A)
申请公布日期
1932.10.18
申请号
US19300422023
申请日期
1930.01.20
申请人
WERTZ LOUIS S
发明人
WERTZ LOUIS S.
分类号
E04G23/02;E21D20/02
主分类号
E04G23/02
代理机构
代理人
主权项
地址
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