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经营范围
发明名称
Procédé de production d'enregistrements sonores mécaniques
摘要
申请公布号
FR819788(A)
申请公布日期
1937.10.26
申请号
FRD819788
申请日期
1937.03.26
申请人
I. G. FARBENINDUSTRIE AKTIENGESELLSCHAFT
发明人
分类号
G03C5/14
主分类号
G03C5/14
代理机构
代理人
主权项
地址
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