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发明名称
FILLING-IN PIPELINE SWITCH
摘要
申请公布号
SU735807(A1)
申请公布日期
1980.05.27
申请号
SU19772533744
申请日期
1977.10.10
申请人
PETROV VLADIMIR ,SU;DUVALOV VYACHESLAV A,SU;TIKHONOV ANATOLIJ P,SU
发明人
PETROV VLADIMIR ,SU;DUVALOV VYACHESLAV A,SU;TIKHONOV ANATOLIJ P,SU
分类号
E21F15/08;(IPC1-7):E21F15/08
主分类号
E21F15/08
代理机构
代理人
主权项
地址
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