发明名称 METHOD OF OPERATING A SECURITY DEVICE
摘要 <p>A lock has means (15, 16) for reading from a key (11) a binary encoded number. If the number read from the key is a predetermined number, the lock will store in a memory (19) a further number read from a further key applied immediately after withdrawal of the first key. The device will then recognise the second key, when applied subsequently.</p>
申请公布号 WO8700233(A1) 申请公布日期 1987.01.15
申请号 WO1986GB00394 申请日期 1986.07.09
申请人 LOWE & FLETCHER LIMITED 发明人 O'CONNELL, JOHN;WEBSTER, ALAN;JEFFERIES, ROY, STEPHEN;TREVOR-JONES, HUGH
分类号 E05B49/00;(IPC1-7):E05B49/00 主分类号 E05B49/00
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