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发明名称
摘要
申请公布号
FR2159249(A1)
申请公布日期
1973.06.22
申请号
FR19720031238
申请日期
1972.09.04
申请人
KLOCKNER WERKE AG
发明人
分类号
E21D23/06;E21D23/16;(IPC1-7):E21D23/00;E21D17/00;E21D19/00
主分类号
E21D23/06
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代理人
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