System for issuing and receiving information by digital data via electromagnetic waves for validation checks, credit cards and the like

摘要

"The system of emission and reception of information by digital data via electromagnetic waves for validation checks, credit cards and the like.The present invention relates to a system for verification of credit cards and / or checks based on a data transmitter via electromagnetic waves and a plurality of receivers that includeWith a memory device for storing these data in order to be used in the consultation, verification and validation for theft and / or loss.Credit or other information that requires immediate update at several points simultaneously.