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发明名称
Flachlautsprecher mit an einer Gebaeude- oder Zimmerwand moeglichst eng anliegender Schallwand
摘要
申请公布号
DE739326(C)
申请公布日期
1943.09.20
申请号
DE1936T047571D
申请日期
1936.10.08
申请人
TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M.B.H.
发明人
BENECKE DR. HEINRICH
分类号
H04R1/28
主分类号
H04R1/28
代理机构
代理人
主权项
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