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经营范围
发明名称
Akustisk Apparat.
摘要
申请公布号
DK54244(C)
申请公布日期
1938.01.31
申请号
DKD54244
申请日期
1935.12.28
申请人
STANDARD ELECTRIC AKTIESELSKAB (STANDARD ELECTRIC LTD.)
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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