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发明名称
Improvements relating to electrical contact selecting devices
摘要
申请公布号
GB688037(A)
申请公布日期
1953.02.25
申请号
GB19500002930
申请日期
1950.02.04
申请人
ELECTRIC & MUSICAL INDUSTRIES LIMITED
发明人
O'DELL ALBERT GEORGE;THOMPSON JAMES
分类号
H04B1/16
主分类号
H04B1/16
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代理人
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地址
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