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发明名称
TRANSDUCER CIRCUIT ARRANGEMENTS
摘要
申请公布号
GB1500002(A)
申请公布日期
1978.02.08
申请号
GB19740009043
申请日期
1975.05.22
申请人
PLESSEY CO LTD
发明人
分类号
H04R3/04;(IPC1-7):H04R3/00
主分类号
H04R3/04
代理机构
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地址
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