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发明名称
PERFECCIONAMIENTOS INTRODUCIDOS EN LOS MECANISMOS DE APARATOS PROYECTORES CINEMATOGRáFICOS
摘要
申请公布号
ES231191(A1)
申请公布日期
1957.03.16
申请号
ES19910002311
申请日期
1956.10.05
申请人
ROIG CRESPO, ALFREDO
发明人
分类号
(IPC1-7):G03
主分类号
(IPC1-7):G03
代理机构
代理人
主权项
地址
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