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发明名称
摘要
申请公布号
DE2704818(C3)
申请公布日期
1981.11.26
申请号
DE19772704818
申请日期
1977.02.05
申请人
DYCKERHOFF & WIDMANN AG, 8000 MUENCHEN, DE
发明人
VERZICHT DES ERFINDERS AUF NEN
分类号
E04C5/12;(IPC1-7):E04C5/12;E04C5/18
主分类号
E04C5/12
代理机构
代理人
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地址
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