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Richard G. Drew, who had developed masking tape in 1926, took the idea a step further, and on May 27, 1930, he and his employers at the 3M Company received a patent for cellophane - aka scotch - tape. 3M's main product before that was sandpaper. Drew was delivering sandpaper to auto manufacturers, and saw that they were having trouble keeping a neat line between the colors on two-toned cars. He came up with an adhesive tape that would lift easily off the car, without lifting the paint at the same time. When he then invented the transparent cellophane tape, it became a consumer favorite.

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15y ago

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