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发明名称
EQUIVALENT MATERIAL
摘要
申请公布号
SU697719(A1)
申请公布日期
1979.11.15
申请号
SU19782597843
申请日期
1978.03.29
申请人
LE , OP¯EHA OKTù¬PÓCKOö PEBOó½|ôô ô OP¯EHA TPY¯OBO×O KPACHO×O ³HAMEHô ×OPHÕö ôHCTôTYT ôM. ×.B.üóEXAHOBA
发明人
TOLSTUNOV SERGEJ A,SU;DONIN YAKOV G,SU
分类号
E21C39/00;(IPC1-7):E21C39/00
主分类号
E21C39/00
代理机构
代理人
主权项
地址
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