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经营范围
发明名称
LOUDSPEAKER SYSTEM
摘要
申请公布号
GB8928352(D0)
申请公布日期
1990.02.21
申请号
GB19890028352
申请日期
1989.12.15
申请人
FOX, ANDREW J
发明人
分类号
H04R1/22;H04R1/26
主分类号
H04R1/22
代理机构
代理人
主权项
地址
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