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发明名称
Elektrodynamischer Lautsprecher
摘要
申请公布号
DE520948(C)
申请公布日期
1931.03.16
申请号
DE1929S090904D
申请日期
1929.04.06
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
PAULI DR. HEINRICH
分类号
H04R9/04
主分类号
H04R9/04
代理机构
代理人
主权项
地址
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