发明名称 Disc-shaped information carrier having an insert piece provided with a central bore.
摘要 <p>Round disc-shaped information carrier (12), e.g. a compact-disc (CD), videodisc or the like, adapted to be carried during recording and/or playback by support means provided with a central axis snugly fitting in a bore, present in the centre of the information carrier, the bore being present in an insert piece (14, 14) positioned in a larger bore (13) present in the information carrier, said insert piece comprising a generally cylindrical part (15) extending through the bore present in the information carrier and flanges (16) present at the ends of said cylindrical part, said flanges substantially covering the edges of the bore present in the information carrier.</p>
申请公布号 EP0230695(A1) 申请公布日期 1987.08.05
申请号 EP19860202331 申请日期 1986.12.18
申请人 NAGRON PRECISION TOOLING 发明人 VAN POORTEN, ANTONIUS
分类号 G11B23/00 主分类号 G11B23/00
代理机构 代理人
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