发明名称 |
Door locking means |
摘要 |
The invention relates to a door-locking and release system in a building in which system a door is adapted to be held locked by a component removably affixed thereto. Said component is adapted to operate an electrical circuit, such as to deactivate off an alarm circuit, only when detached from the door to provide an indication that the door is in the unlocked condition.
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申请公布号 |
US3995464(A) |
申请公布日期 |
1976.12.07 |
申请号 |
US19750561575 |
申请日期 |
1975.03.24 |
申请人 |
W. J. REYNOLDS (EQUIPMENT) LIMITED |
发明人 |
TERRY, RAYMOND KENNETH HENRY |
分类号 |
E05B45/06;E05B65/10;(IPC1-7):E05B39/04 |
主分类号 |
E05B45/06 |
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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