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发明名称
摘要
申请公布号
FR1567333(A)
申请公布日期
1969.05.16
申请号
FRD1567333
申请日期
1968.04.08
申请人
发明人
分类号
F15B13/00;F15B13/043;F15B13/08;F16K31/42
主分类号
F15B13/00
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