What Are Pencils with Erasers?
Who Thought of Putting an Eraser on a Pencil? Pencils with erasers are an American phenomenon. The first patent on an integral pencil and eraser got assigned in the...
Read MoreWho Thought of Putting an Eraser on a Pencil? Pencils with erasers are an American phenomenon. The first patent on an integral pencil and eraser got assigned in the...
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