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发明名称
IMPROVEMENTS IN OR RELATING TO UNDERGROUND CHAMBERS
摘要
申请公布号
GB9203274(D0)
申请公布日期
1992.04.01
申请号
GB19920003274
申请日期
1992.02.15
申请人
VICTAULIC PLC
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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