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 She...Show More
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 She...Show More
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