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发明名称
摘要
申请公布号
FR2128485(A1)
申请公布日期
1972.10.20
申请号
FR19720007098
申请日期
1972.03.01
申请人
SKOLD MATS
发明人
分类号
E04C5/16;E04G21/12;(IPC1-7):04C5/00
主分类号
E04C5/16
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