| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable an easy recognition of the remaining units of stored value without reversing a magnetic card. SOLUTION: A magnetic card 1 is used within the amt. of stored value information and when used, the used value is subtracted from the stored value and the remaining value is stored again as the remaining value information and marked by a punched hole 4. In this constitution of the count display 3, which shows the remaining value indicated by the punched hole, is arranged along the holes on each side of the card.</p> |
