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发明名称
PERFECTIONNEMENT AUX MEMOIRES PERMANENTES
摘要
申请公布号
BE773324(A1)
申请公布日期
1972.03.30
申请号
BE19710773324
申请日期
1971.09.30
申请人
SIEMENS A.G., A BERLIN ET A MUNICH (ALLEMAGNE),
发明人
分类号
G11C17/02;(IPC1-7):G11C/
主分类号
G11C17/02
代理机构
代理人
主权项
地址
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