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The Stuff of Genius - Ballpoint Pens

In one form or another, pens have been around for centuries. Unfortunately, they've also been messy, inconvenient and unreliable. Learn how Laszlo Biro's Stuff of Genius brought pens into the modern age in this episode. http://howstuffworks.com http://www.facebook.com/StuffofGenius http://itunes.apple.com/us/podcast/the-stuff-of-genius/
Length: 01:57

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