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发明名称
INFANTS' HEAR-AID
摘要
申请公布号
CS220387(B1)
申请公布日期
1983.04.29
申请号
CS19800007112
申请日期
1980.10.21
申请人
HRUBY,JAROSLAV,CS
发明人
HRUBY,JAROSLAV,CS
分类号
H04R25/00;(IPC1-7):H04R25/00
主分类号
H04R25/00
代理机构
代理人
主权项
地址
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