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Additional security for double-lock safes and deposit boxes having keys
Additional security for double-lock safes and deposit boxes having keys
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机译:双锁保险箱和带钥匙的保管箱的附加安全性
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摘要
Doors having two separate keys for security are further protected by closing one keyhole with an electromagnetically, or motor driven (8,9), shutter (7), locked in place by a magnetically (17) operated slide (16) which may be remotely released.
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