Pencils equipped with erasers, and pencils with erasers are not considered new products. Because this product has been around for many years.
Appearance information:
There is a painter named Lippmann in Florida, USA. His life is quite poor and he is a poor painter. He was so poor that he couldn't even afford canvas and paper. The pens and easels he had on hand, as well as the painting tools he used, were all junk. However, he did not give up his artistic pursuit and insisted on painting every day, often until dawn.
One day, Lippmann was concentrating on drawing a sketch. The only pencil he had had been sharpened very short, and he had to pinch it to finish the painting. As he was drawing, he found that the picture needed to be modified, so he put down his pen and looked for his only eraser in the messy studio. He searched for a long time and finally found the small eraser, which was not much bigger than a pen or soybean. After he wiped away the areas that needed to be corrected, he discovered that the damn pencil was missing again. He searched for this and which one he had lost. After wasting a lot of time, Li Puman finally found the pencil end with patience. In a fit of rage, he decided to tie the eraser and pen together so that neither of them could run away! So he found a silk thread and tied the eraser to the top of the pencil. In this way, the pencil seemed to have grown a little longer, but it was much easier to use. However, after a few uses, the eraser fell off, and the poor artist became cruel. , be sure to fix this naughty eraser head firmly on the pencil. For this reason, he even stopped drawing, and worked stubbornly for several days, thinking of various ways to fix the rubber head... Finally, he finally came up with a good idea: use a thin piece of iron sheet and a pencil Wrap one end.
This is the pencil with eraser used by people today, which became his patent.
Soon, the famous RABAR pencil bought the patent for a huge sum of US$500,000. Lippmann became an inventor and a rich man from a poor painter.