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发明名称
Hörverstärker
摘要
申请公布号
AT168092(B)
申请公布日期
1951.04.10
申请号
ATD168092
申请日期
1949.07.29
申请人
KARL KAPSCH
发明人
KARL KAPSCH
分类号
主分类号
代理机构
代理人
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地址
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