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发明名称
Electro-acoustic transducer
摘要
申请公布号
US3251952(A)
申请公布日期
1966.05.17
申请号
US19610161652
申请日期
1961.12.22
申请人
AVRAHAM SHOMER
发明人
SHOMER AVRAHAM
分类号
G11B7/0033;G11B7/0037;G11B7/09;G11B7/095
主分类号
G11B7/0033
代理机构
代理人
主权项
地址
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