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经营范围
发明名称
ADVANCING MARINE PIPELINE EXCAVATION SHIELD
摘要
申请公布号
GB8520492(D0)
申请公布日期
1985.09.18
申请号
GB19850020492
申请日期
1985.08.15
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV
发明人
分类号
E02F5/10
主分类号
E02F5/10
代理机构
代理人
主权项
地址
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