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发明名称
Nouvel indicateur de vitesse, particulièrement applicable aux phonographes
摘要
申请公布号
FR720892(A)
申请公布日期
1932.02.25
申请号
FRD720892
申请日期
1931.07.31
申请人
发明人
COUMBOPOULOS STAVROS
分类号
G11B17/02
主分类号
G11B17/02
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