| 摘要 |
A visually descriptive information transmission, storage, and retrieval set, and method of making a preliminarily reproduced set of same. The set utilizes a plurality of sheets of substantially white paper. Each sheet comprises an image area centrally located thereon and coding means of a different nature on each sheet in a set. The coding having a pattern, color, and saturation is located between the image area and at least one edge of each sheet. The coding readily visually identifies each sheet in the set as a distinct entity permitting proper routing or filing thereof. The paper set also has chemical coatings on each sheet which are pressure activated to cause reproduction on successive stacked sheets of data when pressure is applied to the top sheet. Portable vehicles in which sheets of the set may be placed are likewise coded for distinct identification. The method utilizes sheets or overlays of transparent material, having differing coding including a pattern, color, and saturation located thereon. The overlay sheets are used with a paper master sheet having predetermined image area indicia to reproduce on a copy machine sets of reproduced sheets having differing coding on each sheet. Overlay sheets may also be used on a need-to-know basis to encrypt or decipher data on sheets in a set if the data is not otherwise recognizable.
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