| 摘要 |
<p>PURPOSE:To obtain a high reliability as to information by narrowering the width of positioning code holes for an order card less than the width of information code holes to attain 2nd reading of the information. CONSTITUTION:The information code holes 2, 2 representing in the binary-coded decimal rotation, for example, and a parity check bit hole 3 to prevent the error of reading of the parity are made to the 1st line of the order card 1. A frame 6 for assembling order is sectioned into sections A, B, C and D at the 2nd line and each section is described with characters and symbols so as to identify car type, model and mounting location. The width (a) of the holes 2, 2 and 3 is made wider than the slit width (b) of the positioning holes 4, 5, thereby improving the reliability of the check function.</p> |
