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发明名称
SISTEMAS DE SENALIZACIoN DE TEXTOS PARA FACILITAR LA PRONUNCIACIoN DE IDIOMAS
摘要
申请公布号
ES234892(A2)
申请公布日期
1957.08.16
申请号
ES19920002348
申请日期
1957.04.15
申请人
GOMEZ GUTIEZ, JULIAN
发明人
分类号
(IPC1-7):G09B
主分类号
(IPC1-7):G09B
代理机构
代理人
主权项
地址
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