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发明名称
摘要
申请公布号
JPS5550590(B2)
申请公布日期
1980.12.18
申请号
JP19730059234
申请日期
1973.05.25
申请人
发明人
分类号
F16K1/14;F16K31/06
主分类号
F16K1/14
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