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发明名称
DEVICE FOR SETTING THROTTLING WASHER IN PIPELINE
摘要
申请公布号
SU829977(A2)
申请公布日期
1981.05.15
申请号
SU19792758626
申请日期
1979.04.26
申请人
G MAKEEVSKIJ REVOLYUTSII NII PO BEZOPASNOSTI RABOT V GORNOJ PROMYSHLENNOSTI
发明人
BAEV KHRISTOFOR A,SU;BEREZNYAK LEONID M,SU
分类号
E21F7/00;G05D7/01;(IPC1-7):E21F7/00
主分类号
E21F7/00
代理机构
代理人
主权项
地址
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