Wheel locks for video tape cassettes
    2.
    发明授权
    Wheel locks for video tape cassettes 失效
    录像带车轮锁

    公开(公告)号:US4739949A

    公开(公告)日:1988-04-26

    申请号:US920469

    申请日:1986-10-20

    Applicant: Long-Jin Lin

    Inventor: Long-Jin Lin

    CPC classification number: G11B23/08721

    Abstract: An improved wheel lock for a video tape cassette is molded as one whole unit (part) of a flexible and elastic plastic material. This single part can effectively prevent the wheels of the tape cassette from free rotation or make it rotate freely, which is conventionally effected by the interaction of five units (parts). This single unit is easy to manufacture, low in its cost and accurate in its action.

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