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经营范围
发明名称
ELECTRONIC GENERATOR OF AUDIBLE SIGNALS
摘要
申请公布号
PL255067(A2)
申请公布日期
1986.07.01
申请号
PL19850255067
申请日期
1985.08.20
申请人
DROZDZ BOGDAN
发明人
DROZDZ BOGDAN
分类号
H04R;(IPC1-7):H04R/
主分类号
H04R
代理机构
代理人
主权项
地址
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