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.
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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