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发明名称
摘要
申请公布号
BE680559(A)
申请公布日期
1966.10.17
申请号
BED680559
申请日期
1966.05.05
申请人
发明人
分类号
F16K1/32;F16K27/02;F16K27/12
主分类号
F16K1/32
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