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发明名称
摘要
申请公布号
FR2079480(A5)
申请公布日期
1971.11.12
申请号
FR19700003654
申请日期
1970.02.03
申请人
SIERS
发明人
分类号
F16K3/28;(IPC1-7):F16K3/00
主分类号
F16K3/28
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