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发明名称
BACK PRESSURE VALVE
摘要
申请公布号
RU2023121(C1)
申请公布日期
1994.11.15
申请号
SU19894732345
申请日期
1989.08.24
申请人
TSYBULENKO IVAN VASILEVICH
发明人
TSYBULENKO IVAN V;SANDUL VIKTOR E
分类号
E03D1/32;(IPC1-7):E03D1/32
主分类号
E03D1/32
代理机构
代理人
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地址
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