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发明名称
Improvements in or relating to sound recording or reproducing pick-up heads
摘要
申请公布号
GB847758(A)
申请公布日期
1960.09.14
申请号
GB19580036602
申请日期
1958.11.13
申请人
ELECTROACUSTIC GESELLSCHAFT MIT BESCHRAEUKTER HAFTUNG
发明人
分类号
H04R17/08
主分类号
H04R17/08
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