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发明名称
COMPOSITION FOR SINTERED BARIUM CATHODES
摘要
申请公布号
CA569691(A)
申请公布日期
1959.01.27
申请号
CAD569691
申请日期
申请人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
JEAN FREYTAG;JEAN RAYNAUD;HARRY HUBER
分类号
主分类号
代理机构
代理人
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