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发明名称
Classeur pour disques de phonographe
摘要
申请公布号
FR690257(A)
申请公布日期
1930.09.18
申请号
FRD690257
申请日期
1930.01.04
申请人
发明人
GRANDJEAN RENE
分类号
G11B23/03;G11B33/04
主分类号
G11B23/03
代理机构
代理人
主权项
地址
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