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发明名称
TUBO CON RECUBRIMIENTO INTERIOR Y EXTERIOR
摘要
申请公布号
ES248363(Y)
申请公布日期
1981.01.01
申请号
ES19630002483U
申请日期
1980.02.06
申请人
发明人
分类号
F16L9/22;(IPC1-7):16L9/22
主分类号
F16L9/22
代理机构
代理人
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地址
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