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经营范围
发明名称
Dynamischer Lautsprecher.
摘要
申请公布号
AT132540(B)
申请公布日期
1933.03.25
申请号
ATD132540
申请日期
1931.09.21
申请人
GOTTFRIED A. J. SENEKOVIC
发明人
GOTTFRIED A. J. SENEKOVIC
分类号
主分类号
代理机构
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