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发明名称
Loudspeaker system
摘要
申请公布号
US2880817(A)
申请公布日期
1959.04.07
申请号
US19530388798
申请日期
1953.10.28
申请人
PICKARD & BURNS, INC.
发明人
BURNS HAROLD S.;MARS PAUL A. DE
分类号
H04R1/28
主分类号
H04R1/28
代理机构
代理人
主权项
地址
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