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发明名称
SWIVEL JOINT
摘要
申请公布号
SU1006706(A1)
申请公布日期
1983.03.23
申请号
SU19813371984
申请日期
1981.12.29
申请人
VNII METODIKI TEKHNIKI RAZVEDKI
发明人
VARZHEL BORIS I,SU;FADEEV VIKTOR N,SU;BUKHAREV NIKOLAJ N,SU
分类号
E21B21/02;(IPC1-7):E21B21/02
主分类号
E21B21/02
代理机构
代理人
主权项
地址
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