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发明名称
Improvements relating to stereophonic sound recording systems
摘要
申请公布号
GB871993(A)
申请公布日期
1961.07.05
申请号
GB19570018623
申请日期
1957.06.13
申请人
ELECTRIC & MUSICAL INDUSTRIES LIMITED
发明人
PERCIVAL WILLIAM SPENCER
分类号
H04S1/00
主分类号
H04S1/00
代理机构
代理人
主权项
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