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发明名称
ELECTRICAL SIGNAL TRANSMISSION
摘要
申请公布号
CA434882(A)
申请公布日期
1946.05.21
申请号
CAD434882
申请日期
申请人
ELECTRIC AND MUSICAL INDUSTRIES LIMITED
发明人
ALAN DOWER BLUMLEIN
分类号
主分类号
代理机构
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