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发明名称
UTIL DESATASCADOR DE TUBERIAS DE DESAGUES
摘要
申请公布号
ES254397(Y)
申请公布日期
1981.10.01
申请号
ES19970002543U
申请日期
1980.11.14
申请人
发明人
分类号
E03C1/302;(IPC1-7):03C1/302
主分类号
E03C1/302
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代理人
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地址
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