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经营范围
发明名称
PROCEDIMENTO PER LA PERFORAZIONE DI UN POZZO
摘要
申请公布号
IT8567012(D0)
申请公布日期
1985.01.08
申请号
IT19850067012
申请日期
1985.01.08
申请人
SHELL INTERNATIONAL RESEARCH MAATSCHAPPIJ B.V.
发明人
GERARDUS MARIA BOL;MARINUS VAN ZANTEN
分类号
C09K8/08;(IPC1-7):E21D/
主分类号
C09K8/08
代理机构
代理人
主权项
地址
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