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My idea is very simple to be implemented.Right from the time we start going to school we are made to use Science Practical Notebooks(one side ruled and other side blank),but an average student(especially a kid)during his whole session makes 8-10 diagrams and rest of the copy is wasted either for rough work or just sold to rag pickers.Assuming for a student 100 pages wasted per copy used with an average of 4interleaf notebooks ...more »

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