Pencil eraser patent
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Pencil Eraser Patent PowerPoint PPT Presentation


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Pencil Eraser Patent. Presented by Irene Varela. Some History…. For a long time people erased with bread 1770 Edward Naime created first rubber eraser 1776 Joseph Priestley suggested the use of a substance that erases lead 1839 Charles Goodyear discovers vulcanization.

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Pencil Eraser Patent

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Pencil eraser patent

Pencil Eraser Patent

Presented by Irene Varela


Some history

Some History…

  • For a long time people erased with bread

  • 1770 Edward Naime created first rubber eraser

  • 1776 Joseph Priestley suggested the use of a substance that erases lead

  • 1839 Charles Goodyear discovers vulcanization


A pencil with an eraser

A Pencil with an Eraser…

  • INVENTION: Pencil with Eraser

  • INVENTOR: Hyman L. Lipman, U.S.

  • YEAR: 1858


Now days eraser for a pencil

Now days eraser for a pencil…


Any questions

Any Questions???

Thank you for your time!


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