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发明名称
POWERED SUPPORT SECTION BASE
摘要
申请公布号
SU1439255(A1)
申请公布日期
1988.11.23
申请号
SU19853967370
申请日期
1985.07.12
申请人
PODMOSKOVNYJ NI PK UGOLNYJ INSTITUT
发明人
OREKHOV IVAN S,SU;GRITSAYUK BORIS I,SU;TREFILOV VASILIJ G,SU;POLUKHIN IVAN A,SU
分类号
E21D23/04
主分类号
E21D23/04
代理机构
代理人
主权项
地址
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