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发明名称
DISPOSITIF D'ENREGISTREMENT D'UN MESSAGE SONORE SUR LA SURFACE INTERIEURE D'UN ANNEAU, DISPOSITIF DE LECTURE CORRESPONDANT ET ANNEAU AINSI ENREGISTRE
摘要
申请公布号
FR2576443(B1)
申请公布日期
1987.03.20
申请号
FR19850000795
申请日期
1985.01.21
申请人
OBENICHE PAUL
发明人
分类号
A44C9/00;G11B3/00;G11B5/00;G11B23/00;G11B25/02;(IPC1-7):G11B3/00
主分类号
A44C9/00
代理机构
代理人
主权项
地址
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