Invisible glass watermarkson your watch or smartphone is genuine

Watermarks have been used for decades to tell if bank notes are genuine. You hold a UV light over a note and it will reveal some hidden detail that helps confirm it is real. To do that for the latest gadgets, Nanoga came up with a manufacturing process that can hide a watermark in glass while remaining completely invisible until a UV light it directed at the surface.
As the watermark is invisible, it has no impact on the final design of devices. That means a company such as Apple or Samsung would consider it for their mobile gadgets as long as the price wasn’t too high. In fact, it may even help a plethora of companies fighting to stop counterfeit or copycat devices hitting the market. No watermark means no sale
 i think this not just about copy gadget  
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