| 摘要 |
Security systems (10) are provided in which a plurality of different lock devices (19, 21, 20, 22) are all responsive to a single key (12). Outdoor lock devices (19, 21, 20, 22) which may not be used for a period of years are unlocked by the key (12) in cooperation with a manually-applied unlocking force (74). A key nest (22) is provided which can controllably apply an unlocking signal to any electronically-controlled device.
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