发明名称 Casette tape take-up indicator
摘要 A tape cassette for a tape recorder comprises a cassette housing having a pair of hubs therein, a predetermined amount of magnetic tape wound around said hubs and a display member having widening resiliency provided between said hubs.
申请公布号 US4181089(A) 申请公布日期 1980.01.01
申请号 US19780870719 申请日期 1978.01.19
申请人 OLYMPUS OPTICAL CO LTD 发明人 SATO, MASAAKI
分类号 G11B23/087;(IPC1-7):G01D13/00;G11B27/34 主分类号 G11B23/087
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