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发明名称
SEAL OF ROLLER CUTTER
摘要
申请公布号
JPH08210071(A)
申请公布日期
1996.08.13
申请号
JP19950016991
申请日期
1995.02.03
申请人
SEKIYU SAKUSEIKI SEISAKU KK
发明人
YOSHIDA KAZUYOSHI
分类号
E21B10/22;(IPC1-7):E21B10/22
主分类号
E21B10/22
代理机构
代理人
主权项
地址
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