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发明名称
Обратный клапан
摘要
申请公布号
SU139523(A1)
申请公布日期
1960.11.30
申请号
SU19590646414
申请日期
1959.12.07
申请人
发明人
VORONTSOV B.V.;GRISHIN N.M.
分类号
F16K15/03
主分类号
F16K15/03
代理机构
代理人
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