FIELD: ironmongery. SUBSTANCE: proposed optical seal-lock includes body and fixed translucent insert pressing ends of coupling unit made of light-reflecting material and functioning as information element against body. Body is provided with cradle accommodating ends of coupling unit in the form of comb, possessing face hole. Ends of coupling unit are located in recesses between teeth of comb. EFFECT: expanded functional capabilities. 4 cl, 2 dwg
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