System for preventing a false use of a card type recording medium and a method thereof

This card type recording medium has plural types of inks which normally exhibit the same color visually but exhibit different optical characteristics under a predetermined condition provided in blocks in a desired pattern and, by breaking the blocks block by block in accordance with the used amount...

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Bibliographische Detailangaben
Hauptverfasser:	YOSHIHARA, KENZOU
Format:	Patent
Sprache:	eng
Schlagworte:	BOOK COVERS BOOKBINDING CALCULATING CHECKING-DEVICES COIN-FREED OR LIKE APPARATUS COMPUTING COUNTING DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR FILES HANDLING RECORD CARRIERS LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS PERFORMING OPERATIONS PHYSICS PRESENTATION OF DATA PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR RECOGNITION OF DATA RECORD CARRIERS SPECIAL PRINTED MATTER TRANSPORTING
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