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经营范围
发明名称
Tonaufnahme- und -wiedergabegerät.
摘要
申请公布号
CH304776(A)
申请公布日期
1955.01.31
申请号
CHD304776
申请日期
1951.12.26
申请人
PROTONA PRODUKTIONSGESELLSCHAFT FUER ELEKTRO-AKUSTISCHE GERAETE GMBH.
发明人
PROTONA PRODUKTIONSGESELLSCHAFT FUER ELEKTRO-AKUSTISCHE GERAETE GMBH.
分类号
G11B5/00
主分类号
G11B5/00
代理机构
代理人
主权项
地址
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