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发明名称
MEJORAS INTRODUCIDAS EN LA FABRICACIoN DE MATERIAL FERROMAGNÉTICO CERáMICO
摘要
申请公布号
ES226467(A1)
申请公布日期
1956.04.01
申请号
ES19670002264
申请日期
1956.02.02
申请人
INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
发明人
分类号
C04B35/26;(IPC1-7):C04
主分类号
C04B35/26
代理机构
代理人
主权项
地址
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