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摘要
申请公布号
FR1566996(A)
申请公布日期
1969.05.09
申请号
FRD1566996
申请日期
1968.06.05
申请人
发明人
分类号
F16J15/12;F16K1/42;F16K27/02;F16K27/08
主分类号
F16J15/12
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代理人
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