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发明名称
Гидромониторный расширитель
摘要
申请公布号
SU135860(A1)
申请公布日期
1960.11.30
申请号
SU19600672307
申请日期
1960.07.07
申请人
发明人
ROMANOV A.Z.;BARSHAJ G.S.;BUYANOVSKIJ N.I.;GELFGAT YA.A.;EDELMAN YA.A.
分类号
E21B7/28;E21C35/23
主分类号
E21B7/28
代理机构
代理人
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地址
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