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发明名称
WASSERTROG
摘要
申请公布号
DE3004500(A1)
申请公布日期
1981.08.13
申请号
DE19803004500
申请日期
1980.02.07
申请人
VKV KUNSTSTOFFANWENDUNG GMBH
发明人
分类号
E21F5/14;(IPC1-7):E21F5/14
主分类号
E21F5/14
代理机构
代理人
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