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Publication of BE884515ApublicationCriticalpatent/BE884515A/fr
G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B13/00—Burglar, theft or intruder alarms
G08B13/02—Mechanical actuation
G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
G08B13/122—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence
G08B13/124—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence with the breaking or disturbance being optically detected, e.g. optical fibers in the perimeter fence
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Physics & Mathematics
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General Physics & Mathematics
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Fencing
(AREA)
Burglar Alarm Systems
(AREA)
BE0/201557A1979-08-071980-07-28Reseau de cloture anti-effraction en forme de grillage ainsi que procede pour sa fabrication
BE884515A
(fr)
Dispositif d'assemblage d'éléments longilignes d'ossature en béton armé et ossature comportant des éléments assemblés par de tels dispositifs
Dispositif de pose et de fixation d'elements filiformes sur des montants verticaux afin de constituer des clotures, grillages, separations et autres.