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发明名称
FILTER
摘要
申请公布号
SU768942(A1)
申请公布日期
1980.10.07
申请号
SU19782668313
申请日期
1978.10.02
申请人
VNI PK I PO OSUSHENIYU MESTOROZHDENIJ POLEZNYKH ISKOPAEMYKH, CüE|ôAóÓHÕM ×OPHÕM PA¬OTAM, PY¯HôÚHOö ×EOóO×ôô ô MAPKÛEö¯EPCKOMY ¯EóY
发明人
YUDIN ALEKSANDR G,SU;VORONTSOV VITALIJ ,SU;GALANOV VLADIMIR F,SU
分类号
E21B43/08;(IPC1-7):E21B43/08
主分类号
E21B43/08
代理机构
代理人
主权项
地址
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