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(en)
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Rotating reel game with masking shutter
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Traffic barriers
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Locking arrangement for securing doors
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(en)
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Release mechanism and method with alarm circuit
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(en)
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Electromagnetically managed latching exit bar
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(en)
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Metal detection and alarm systems
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Photo identification apparatus
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Timelock for bank vault doors and the like
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Dispositivo y procedimiento para vigilar las puertas de un hueco de ascensor
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Door operator with door panel position sensing and locking device
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一种金属探测安全闸
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(en)
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Gates
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Two-key locking system
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Locking apparatus
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Electrically actuated lock mechanism
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Revolving doorlock
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Electro-mechanical shutter system having mechanical latch
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(en)
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Release mechanism and method
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(ja)
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蛍光ｘ線分析計
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Robberproof fixture, lock, and alarm for banks and the like
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Electromechanical lock
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Closure control |
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BE563315A
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