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经营范围
发明名称
POWERED SUPPORT
摘要
申请公布号
SU767358(A1)
申请公布日期
1980.09.30
申请号
SU19742046626
申请日期
1974.07.23
申请人
PODMOSKOVNYJ NI PK UGOLNYJ INSTITUT
发明人
SIROTIN YURIJ G,SU;ROMANOV PAVEL D,SU;POLEJ LEONID S,SU;TITOV GEORGIJ V,SU
分类号
E21D23/16;(IPC1-7):E21D23/16
主分类号
E21D23/16
代理机构
代理人
主权项
地址
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