A CASE WITH AN INFORMATION CARRIER CONSISTING OF A TAPE ONE SIDE OF WHICH HAS A STRUCTURE CARRYING OPTICALLY READABLE INFORMATION, AS WELL AS AN APPARATUS FOR WRITING, READING OR ERASING SUCH INFORMATION

摘要

A dustproof case (20) containing a tape (23) with on one side a structure carrying optically readable information. The tape (23) is accomodated on two reels (21,22). The case (20) is provided with one window (25) through which a part of the tape (23) between the reels (21,22) is visible and with pressing means (24) for urging that part of the tape against the window (25). This pressing means (24) may be a wheel and the window (25) may have the shape of a cylindrical lens.