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发明名称
摘要
申请公布号
NL6501931(A)
申请公布日期
1965.08.26
申请号
NL19650001931
申请日期
1965.02.16
申请人
发明人
分类号
F16L27/04;F16L27/06;F16L47/18
主分类号
F16L27/04
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代理人
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