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发明名称
PROCESSO E DISPOSITIVO PARA REPRODUZIR SOM
摘要
申请公布号
BR6909457(D0)
申请公布日期
1973.01.18
申请号
BR19690009457
申请日期
1969.06.03
申请人
SAGAWA T
发明人
SAGAWA T
分类号
H04R9/02;H04R9/04;H04R9/06
主分类号
H04R9/02
代理机构
代理人
主权项
地址
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