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发明名称
Couvercle de regard.
摘要
申请公布号
CH289322(A)
申请公布日期
1953.03.15
申请号
CHD289322
申请日期
1951.02.15
申请人
ELKINGTON,VIVIAN
发明人
ELKINGTON,VIVIAN
分类号
E02D29/14
主分类号
E02D29/14
代理机构
代理人
主权项
地址
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