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发明名称
ELEKTROAKUSTISCHER WANDLER
摘要
申请公布号
DE2224148(B2)
申请公布日期
1976.12.09
申请号
DE19722224148
申请日期
1972.05.17
申请人
发明人
分类号
H04R11/04;H04R11/06;(IPC1-7):H04R11/00
主分类号
H04R11/04
代理机构
代理人
主权项
地址
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