Personal identity number (PIN) enciphering device e.g. for banks and credit cards, has at least three cipher discs arranged about common center

摘要

A personal identity number (PIN) encoding device has a base plate (1) with a mounting pin for receiving the cipher discs (2-4). At least three cipher discs are rotatably arranged in step-wise relationship about a common center, so that the protruding edge has sufficient space for the marked fields to allow entry of the PIN-number.