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发明名称
摘要
申请公布号
BE660139(A)
申请公布日期
1965.08.23
申请号
BE19650660139
申请日期
1965.02.23
申请人
发明人
分类号
F16K5/06;F16K5/20
主分类号
F16K5/06
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代理人
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