| 摘要 |
A device for decoding or interpreting perforated tape including a pair of members rotatably joined to each other. The first member includes slotted portions for fixing a length of perforated tape relative thereto, and a slotted section permitting a viewer to examine a discrete code level of the tape therethrough. The other member includes a set of symbols and an aligned arrangement of indicia in an array, so arranged that on rotation relative to the first member, various of such indicia will be positioned relative to the first member's slotted section. The indicia is so arranged that when perforations in the tape are initially superimposed over the appropriate indicia the perforations are decoded by virtue of the aligned symbols on the other member.
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