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发明名称
RING-TO-RING JOINT FOR SEGMENT RING
摘要
申请公布号
JPH0932488(A)
申请公布日期
1997.02.04
申请号
JP19950182725
申请日期
1995.07.19
申请人
GEOSTR CORP
发明人
FUJII KENTARO;FUJINO YUTAKA
分类号
E21D11/04;(IPC1-7):E21D11/04
主分类号
E21D11/04
代理机构
代理人
主权项
地址
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