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发明名称
DISPOSICAO CONSTRUTIVA EM ALTO FALANTE
摘要
申请公布号
BR6101463(U)
申请公布日期
1982.01.05
申请号
BR19810001463U
申请日期
1981.10.19
申请人
ALMEIDA J
发明人
ALMEIDA J
分类号
H04R19/02;(IPC1-7):H04R19/02
主分类号
H04R19/02
代理机构
代理人
主权项
地址
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