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发明名称
Acoustical apparatus
摘要
申请公布号
US3015704(A)
申请公布日期
1962.01.02
申请号
US19600064630
申请日期
1960.10.24
申请人
MAICO ELECTRONICS, INCORPORATED
发明人
BEHYMER DONALD JAMES
分类号
H04R25/04
主分类号
H04R25/04
代理机构
代理人
主权项
地址
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