Hallmark Cards has been granted a patent for a moldable eraser kit that includes two silicone polymers, an abrasive agent, and a catalyst. The eraser is made by mixing the polymers, catalyst, and ...
A serious flaw has been exposed in the new polymer £5 note -- it can be wiped almost totally clean of ink using a simple pencil eraser. Did you know with a Digital subscription to Yorkshire Post, you ...
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