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Birthday of the ballpoint pen
Catalog: Разное 
7 hours ago · From Tanzania Online
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Who invented the ballpoint pen The idea of using a ball to deliver ink to paper originated in the 19th century. The first patent was received by the American John Loud in 1888. His device used a rotating ball coated with ink, but it was imperfect: the ink
Tanzania Online · an hour ago 0 2
 

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