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经营范围
发明名称
Akustisk Signalapparat.
摘要
申请公布号
DK56184(C)
申请公布日期
1939.05.15
申请号
DKD56184
申请日期
1937.12.04
申请人
OLOF INGEMAR HARALD EKMAN
发明人
OLOF INGEMAR HARALD EKMAN
分类号
主分类号
代理机构
代理人
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