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发明名称
PROCEDIMIENTO Y DISPOSITIVO PARA LA NIVELACIoN DE LAS ViAS FÉRREAS.
摘要
申请公布号
ES115420(A2)
申请公布日期
1930.01.01
申请号
ES19200001154
申请日期
1929.11.04
申请人
LENAIRE, MAURICE HENRI
发明人
分类号
(IPC1-7):E01
主分类号
(IPC1-7):E01
代理机构
代理人
主权项
地址
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