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经营范围
发明名称
BORER FOR INSERTING CASING
摘要
申请公布号
JPH03208982(A)
申请公布日期
1991.09.12
申请号
JP19900003376
申请日期
1990.01.12
申请人
KATO WORKS CO LTD
发明人
ICHISAWA TOSHIYUKI
分类号
E21B7/20;E21B19/02
主分类号
E21B7/20
代理机构
代理人
主权项
地址
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