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经营范围
发明名称
Akustisk Horn.
摘要
申请公布号
DK41688(C)
申请公布日期
1930.02.24
申请号
DKD41688
申请日期
1925.10.09
申请人
INDEHAVERE AF EN ELEKTRISK FORRETNING ELECTRICAL RESEARCH PRODUCTS INC.
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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