SUR a DOCUMENT 2 ARE BRACKETS N2 DIFFERENT STANDARDS has, B OF OPTICAL MARKS 3 READABLE WITH the MACHINE.POUR TO FORM a CODE, ONE LATER ON AT LEAST PARTLY ERASES MARKS 3 GIVEN. IN an APPARATUS Of IDENTIFICATION, BY MEANS OF WITH the LESS NR DETECTORS OF LIGHT, SENSITIVE EACH ONE TO the ONE OF the TYPES OF MARKS has, B the VALIDITY OF REMAINING MARKS 3 IS VERIFIEE AND the INFORMATION CODEE EAST READ IN SERIES. The RATE/RHYTHM OF READING OF INFORMATION CODEE EAST DRAWS FROM the DETECTING SIGNALS OF the NR OF LUMIERE.APPLICATION TO the CHECKING OF the VALIDITY OF INPUT CARD, INDENTITY CARDS, Credit card, Real estate value, ETC.