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发明名称
ASYMMETRIC ARCHED HINGED COMPRESSIBLE ROOF SUPPORT
摘要
申请公布号
SU612038(A1)
申请公布日期
1978.06.25
申请号
SU19742053497
申请日期
1974.08.12
申请人
VNI PK UGOLNYJ INSTITUT
发明人
MOROZOV YURIJ ,SU;LEBEDEV BORIS ,SU;SEREDENKO MIKHAIL ,SU;SOROKA VIKTOR L,SU
分类号
E21D11/14;(IPC1-7):E21D11/14
主分类号
E21D11/14
代理机构
代理人
主权项
地址
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