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发明名称
摘要
申请公布号
BE710747(A)
申请公布日期
1968.06.17
申请号
BED710747
申请日期
1968.02.14
申请人
发明人
分类号
F16L9/00;F16L23/14;F16L23/16;F16L58/18;F24F13/02
主分类号
F16L9/00
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代理人
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