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发明名称
Dispositif pour le classement des disques de phonographes ou autres documents plats
摘要
申请公布号
FR692307(A)
申请公布日期
1930.11.04
申请号
FRD692307
申请日期
1930.03.19
申请人
发明人
ROLATO-PETION GUY-CHARLES-JEAN-HEN
分类号
G11B33/04
主分类号
G11B33/04
代理机构
代理人
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