Best before detector

G - Physics – 04 – F

Patent

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Details

G04F 3/06 (2006.01) G08B 7/00 (2006.01) G08B 7/06 (2006.01) G09B 21/00 (2006.01)

Patent

CA 2382843

Petit appareil à batterie électrique dans son boîtier/enveloppe (joint au contenu ou au contenant d'un produit), qui déclenche un son (auditif, un témoin de couleur (visuel) et un envoi électronique (onde) lorsque la date et/ou le temps et/ou le délai (voir circuit contrôle) de péremption et d'expiration d'un produit est atteint, répondant au besoin de tous, et particulièrement utile pour les non-voyants et les malentendants (personnes aveugles et/ou sourdes).

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