发明名称 Flexible information disc or playback record - has radial slots for folding for storage or transport
摘要 <p>An information disc made of thn flexible sheet material and with a hole in the centre is designed to be folded for storage. A number of radial lines (16, 18, 20, 22) intersect in the centre of the disc (10) when laid out flat. Slots (24) cut into the disc (10) along several of these lines start at the hole (14) in the centre and terminate at a distance from the information carrying part (12) of the information disc (10). The disc can then be folded for storage or transport. For the first hold it is bent along a first radial line (16) and then along a second radial line (18). Conical supports can then be positioned inside the curved folded portions.</p>
申请公布号 DE2533693(A1) 申请公布日期 1977.02.03
申请号 DE19752533693 申请日期 1975.07.28
申请人 ROGGE,PETER 发明人 RIEDEL,HORST
分类号 G11B3/68;(IPC1-7):11B3/68 主分类号 G11B3/68
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