SEAL AND SEALING METHOD

The invention relates to a seal containing a substrate which can be applied to an object to be sealed, so that said seal is changed when it is removed without authorization, wherein the substrate contains or comprises a polymer and/or a glass and at least one optical waveguide is arranged in the sub...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SCHADE, Wolfgang, FLACHENECKER, Günter, GORECKI, Christian, THOMA, Andreas, THIEL, Markus, RATHJE, Rainer
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADVERTISING CRYPTOGRAPHY DISPLAY DISPLAYING EDUCATION LABELS OR NAME-PLATES PHYSICS SEALS SIGNS
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