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Patents Represented by Attorney Roland Plottell

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Method of identification of a product for the purpose of preventing fraud and device for carrying out this method

Patent number: 5003612

Abstract: This method consists in introducing a programmed defect at the writing level; the defect will be detected at the reading level by means of a key corresponding to the writing control algorithm which is known only to the user.

Type: Grant

Filed: October 4, 1988

Date of Patent: March 26, 1991

Assignee: Image S.A.

Inventor: Jean-Claude Millet