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发明名称
PERFECCIONAMIENTOS EN LA CONSTRUCCION DE CONGELADORES PARA TUBERIAS.
摘要
申请公布号
ES371041(A1)
申请公布日期
1971.08.01
申请号
ES19410003710
申请日期
1969.08.30
申请人
ROURA
发明人
分类号
F16L53/00;F16L55/103;F25D3/12;(IPC1-7):25D/
主分类号
F16L53/00
代理机构
代理人
主权项
地址
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