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over 5 years ago

#IPwePatentTuesday Exactly 146 years ago, #GeorgeGreen #patented the first #ElectricDentalDrill. Electric dental drills #revolutionized the 9,000 year-old precedent of mechanical hand drills and are still essential to modern dentistry. #PatentHistory https://t.co/vPoWdf0Hiz

ipwe_'s tweet photo. #IPwePatentTuesday

Exactly 146 years ago, #GeorgeGreen #patented the first #ElectricDentalDrill. Electric dental drills #revolutionized the 9,000 year-old precedent of mechanical hand drills and are still essential to modern dentistry. #PatentHistory

https://t.co/vPoWdf0Hiz https://t.co/3bagDVn3ke

IPwe @ipwe_

over 5 years ago

#IPwePatentTuesday Exactly 105 years ago, #GeorgesClaudes, #patented light tubes filled with rare gases. #NeonTubes are a key component of our lives and a fundamental component of the rise of today’s luminescent cities skylines. #PatentHistory https://t.co/8XLFaAb3Yr

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