| 摘要 |
<p>Device produces and evaluates ordering cards suitable for monitoring. It prevents forgery of data relating to value or time. The cards are evaluated rapidly. If verified, they cause the relevant goods to be released or a locking passage to be opened. Day and week data are arranged horizontally or vertically with single or multiple lines or columns of article and price groups with different prepunched category holes. The verifying device can test hole grous and card colouring using a variable testing programme.</p> |
