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发明名称
MANHOLE FRAME
摘要
申请公布号
EP0284973(A3)
申请公布日期
1989.10.18
申请号
EP19880104608
申请日期
1988.03.23
申请人
PASSAVANT-WERKE AG
发明人
WEILER, WALTER, DIPL. ING.
分类号
E02D29/12;(IPC1-7):E02D29/12
主分类号
E02D29/12
代理机构
代理人
主权项
地址
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