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发明名称
MEJORAS INTRODUCIDAS EN LA PREPARACIoN DE MATERIALES LUMINISCENTES PARA LáMPARAS DE DESCARGA A BAJA PRESIoN
摘要
申请公布号
ES204019(A1)
申请公布日期
1952.07.16
申请号
ES19190002040
申请日期
1952.06.14
申请人
WESTINGHOUSE ELECTRIC CORPORATION
发明人
分类号
(IPC1-7):C09
主分类号
(IPC1-7):C09
代理机构
代理人
主权项
地址
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