Posts Tagged ‘patent’

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Hyman Lipman registered the first patent for a pencil with an attached eraser. Well, he did as soon as he found something to write with as we see in this episode of Did This Happen?! Clerk – Chris Sheets Hyman Lipman – Kevin Berntson Find out more about the Hyman Lipman! ©2014 Grant Baciocco/Saturday Morning…

Podcast: Play in new window | Download (Duration: 1:00 — 1.6MB) | Embed

Hyman Lipman registered the first patent for a pencil with an attached eraser. Well, he did as soon as he found something to write with as we see in this episode of Did This Happen?!