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History and Story Behind Inventions: Pencil with EraserAbout the story behind the invention of the pencil with eraser, history and biography of inventor Hyman L. Lipman.INVENTION: Pencil with Eraser INVENTOR: Hyman L. Lipman, U.S. YEAR: 1858 HOW INVENTED: Until the advent of Lipman, people used separate erasers when writing, drawing, figuring. This Philadelphian conceived the simple idea of combining pencil and eraser in one. His invention offered a pencil with a groove on top into which "a piece of prepared rubber" was glued.
He sold his patent for $100,000. | ||
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