Caster Technology - ✏️ French mathematician Bernard Lassimonne went through a lot of pencils very fast and he hated sharpening them with a knife. In 1828, he filed a French patent for
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History of Pencil Sharpener - Facts and Types
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𝕾𝖙𝖔𝖕&𝕷𝖊𝖆𝖗𝖓 - The Pencil Sharpener was created by a French... | Facebook
