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发明名称
CAPSULA TRANSDUTORA PARA TELEFONE
摘要
申请公布号
BR8000467(A)
申请公布日期
1981.07.28
申请号
BR19800000467
申请日期
1980.01.23
申请人
DE CAMPOS M
发明人
DE CAMPOS M
分类号
H04R13/02;(IPC1-7):H04R13/02
主分类号
H04R13/02
代理机构
代理人
主权项
地址
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