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经营范围
发明名称
Lautsprecher.
摘要
申请公布号
AT118957(B)
申请公布日期
1930.09.10
申请号
ATD118957
申请日期
1928.09.26
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
ING. GAUTIER HERMAN THAL-LARSEN
分类号
主分类号
代理机构
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