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发明名称
摘要
申请公布号
FR1574474(A)
申请公布日期
1969.07.11
申请号
FRD1574474
申请日期
1968.07.17
申请人
发明人
分类号
C23D5/00;E04C2/26
主分类号
C23D5/00
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代理人
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地址
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