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pencil drawing
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Pencil Drawing

Eraser attached
On 30 March 1858, Hymen Lipman received the first patent for attaching an eraser to the end of a pencil. In 1862 Lipman sold his patent to Joseph Reckendorfer for $100,000, who went to sue the pencil manufacturer Faber-Castell for infringement. In 1875, the Supreme Court of the United States ruled against Reckendorfer declaring the patent invalid.

File information
Filename:438005.jpg
Album name:Art & Creativity
Rating (1 votes):55555
Keywords:#pencil #drawing
Filesize:98 KiB
Date added:Dec 01, 2011
Dimensions:700 x 487 pixels
Displayed:47 times
URL:displayimage.php?pid=438005
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