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经营范围
发明名称
Système électroacoustique
摘要
申请公布号
BE589334(A1)
申请公布日期
1960.08.01
申请号
BE19600589334
申请日期
1960.04.04
申请人
WESTERN ELECTRIC COMPANY INCORPORATED
发明人
MANFRED ROBERT SCHROEDER
分类号
(IPC1-7):H04M
主分类号
(IPC1-7):H04M
代理机构
代理人
主权项
地址
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