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发明名称
IMPROVEMENTS RELATING TO PIPELINE PIGS
摘要
申请公布号
GB9312701(D0)
申请公布日期
1993.08.04
申请号
GB19930012701
申请日期
1993.06.19
申请人
CASEY ERNEST D.;CASEY IAN D.
发明人
分类号
主分类号
代理机构
代理人
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