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发明名称
PERFECIONAMIENTOS INTRODUCIDOS EN LAS COMPUERTAS DE ACCION RAPIDA
摘要
申请公布号
ES203097(A1)
申请公布日期
1953.11.01
申请号
ES19970002030
申请日期
1952.04.21
申请人
STRUCHEN & CIE
发明人
分类号
(IPC1-7):E02
主分类号
(IPC1-7):E02
代理机构
代理人
主权项
地址
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