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发明名称
摘要
申请公布号
DE2063138(A1)
申请公布日期
1971.09.23
申请号
DE19702063138
申请日期
1970.12.22
申请人
发明人
分类号
E04B1/00;E04B1/26;E04B2/70;(IPC1-7):E04H1/00
主分类号
E04B1/00
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代理人
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