• people in those days, white bread that is not available to remove the edge of the pencil marks her รไฟต์ and coal, this method is also sometimes used by the modern artists
•.1770 the inhabitants of the British engineer named Edward แนร์ (Edward Nairne) is known to be a inventor eraser rubber was first
• sources from the Edward took a lump rubber instead of the bread, rubbed out pencil accidentally deleted and discover the features in the rubber of
• then began to tire sales, and remove the rubber eraser report that he has a price of 3 shillings per half-cubic inch, expensive in those days. But
• eraser perishable and decomposes at the moment like bread
•.1839 Charles Goodyear (Charles Goodyear) Aval, the discovery process (vulcanization), which is a method to maintain rubber and a durable material that delete this type of rubber is popular to the present
• on March 30.1858 ไฮเม tulips, manual (Hymen Lipman) from Philadelphia, Pennsylvania United States Patents in the eraser end of his pencil into the other side of it for the first time
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