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发明名称
PANEL-FORM LOUDSPEAKER
摘要
申请公布号
GB9103969(D0)
申请公布日期
1991.04.10
申请号
GB19910003969
申请日期
1991.02.26
申请人
SECRETARY OF STATE FOR DEFENCE, THE
发明人
分类号
G10K1/066;H04R1/02;H04R7/04;H04R7/06
主分类号
G10K1/066
代理机构
代理人
主权项
地址
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