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发明名称
MANHOLE COVERING
摘要
申请公布号
AU2282888(A)
申请公布日期
1989.04.13
申请号
AU19880022828
申请日期
1988.09.26
申请人
VON ROLL AG
发明人
HANSRUEDI SPIESS;FRANCOIS GALVANETTO
分类号
E02D29/14;(IPC1-7):E02D29/12
主分类号
E02D29/14
代理机构
代理人
主权项
地址
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