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经营范围
发明名称
DRILLING CASING
摘要
申请公布号
JPS5996388(A)
申请公布日期
1984.06.02
申请号
JP19820207282
申请日期
1982.11.25
申请人
MOROKI KAZUYOSHI
发明人
MOROKI KAZUYOSHI
分类号
E21B17/14;E21B17/22
主分类号
E21B17/14
代理机构
代理人
主权项
地址
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