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发明名称
PERFECCIONAMIENTOS EN TUBOS FLEXIBLES
摘要
申请公布号
ES220523(A1)
申请公布日期
1955.09.16
申请号
ES19230002205
申请日期
1955.03.07
申请人
HOOVER, LIMITED
发明人
分类号
(IPC1-7):B29D23/18;B21F17/00;A47L9/24;F16L11/115
主分类号
(IPC1-7):B29D23/18
代理机构
代理人
主权项
地址
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