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发明名称
Acoustical instruments
摘要
申请公布号
US3038038(A)
申请公布日期
1962.06.05
申请号
US19590849494
申请日期
1959.10.29
申请人
MAICO ELECTRONICS, INCORPORATED
发明人
BLOOM HOWARD W.
分类号
H04R1/22;H04R25/00
主分类号
H04R1/22
代理机构
代理人
主权项
地址
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