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发明名称
摘要
申请公布号
LU40817(A1)
申请公布日期
1962.01.13
申请号
LUD40817
申请日期
1961.11.13
申请人
发明人
分类号
F16L9/08;F16L17/035;F16L25/00
主分类号
F16L9/08
代理机构
代理人
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地址
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