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发明名称
MEJORAS INTRODUCIDAS EN EL OBJETO DE LA PATENTE PRINCIPAL
摘要
申请公布号
ES162274(A2)
申请公布日期
1944.03.01
申请号
ES19740001622
申请日期
1943.07.08
申请人
RITZERFELD, WILHELM
发明人
分类号
(IPC1-7):B41
主分类号
(IPC1-7):B41
代理机构
代理人
主权项
地址
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