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发明名称
摘要
申请公布号
DE2141509(A1)
申请公布日期
1972.02.24
申请号
DE19712141509
申请日期
1971.08.19
申请人
发明人
分类号
E04B1/80;E06B3/66;(IPC1-7):E06B/
主分类号
E04B1/80
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代理人
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