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发明名称
Procédé de fabrication des fils et rubans en acier pour enregistrements phoniques magnétiques
摘要
申请公布号
FR897199(A)
申请公布日期
1945.03.14
申请号
FRD897199
申请日期
1943.08.11
申请人
C. LORENZ AKTIENGESELLSCHAFT
发明人
分类号
G11B5/03
主分类号
G11B5/03
代理机构
代理人
主权项
地址
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