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发明名称
WERKWIJZE VOOR HET VERVAARDIGEN VAN EEN AFSLUITENDE, VERTICALE WAND IN DE BODEM, ALSMEDE INRICHTING VOOR HET TOEPASSEN VAN DEZE WERKWIJZE.
摘要
申请公布号
NL8900541(A)
申请公布日期
1990.10.01
申请号
NL19890000541
申请日期
1989.03.06
申请人
DUTCH DRILLING B.V. TE OOSTBURG.
发明人
分类号
E02D17/13;E02D19/18
主分类号
E02D17/13
代理机构
代理人
主权项
地址
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