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发明名称
Dispositif pour effectuer des enregistrements sonores (sans bruits de fond) sur films cinématographiques ou autres supports analogues
摘要
申请公布号
FR878522(A)
申请公布日期
1943.01.22
申请号
FRD878522
申请日期
1942.01.15
申请人
LABORATOIRE INDUSTRIEL D'ELECTRICITE
发明人
RENAULT HENRI
分类号
G11B7/00
主分类号
G11B7/00
代理机构
代理人
主权项
地址
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