发明名称 DISC-SHAPED, OPTICALLY READABLE INFORMATION CARRIER
摘要 <p>The invention relates to a disc-shaped, optically readable information carrier (10) made of plastic material. The disc (10) has a distance member (16) projecting from one side in the form of at least three point-shaped raised portions distributed uniformly in the circumferential direction.</p>
申请公布号 WO1999062060(A1) 申请公布日期 1999.12.02
申请号 SE1999000796 申请日期 1999.05.11
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