发明名称 Lock for video tape cassettes
摘要 A lock for a VHS video cassette is characterized by an insert extendible into and latchable within a sensor LED transmission receptacle of a housing for the cassette. The insert cannot be removed from the receptacle without a special key, and while in the receptacle presents a physical obstruction to the cassette being inserted into a video cassette recorder. The lock thus provides a convenient means to prevent unauthorized playing of a video cassette.
申请公布号 US4628713(A) 申请公布日期 1986.12.16
申请号 US19850717815 申请日期 1985.03.29
申请人 TAPE-LOCK COMPANY 发明人 CECCHI, MARINO;BORUCKI, GREGORY J.
分类号 E05B73/00;G11B23/28;(IPC1-7):E05B73/00 主分类号 E05B73/00
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