Lipman... He actually invented the pencil eraser on top of the pencil because people kept making mistakes. How hard it would without making any mistakes.
It's been more than 150 years since the eraserattached itself to the pencil. We can only assume that hymen-lipmanwas a man who made his fair share of mistakes, but they may have inspired him to stick the eraser on the end of the pencil, making it more convenient to erase the written errors. He got a patent for the development on this date in 1858. Lipman's early version was a pencil with a groove at the top, into which he glued an eraser. He sold his patent in 1862; the US Supreme Court later invalidated it, saying that since combining a pencil with an eraser did not change the function of either item, the pencil-with-eraser could not be patented.
none, actully know when it was added but it when it was added it was by a man named Ngodup Gyaltso.
Edward Nairne first developed the the eraser and it was widely used. However, these rubbers used to go bad after a certain length of time. Hymen Lipman received the first patent for attaching a rubber to the end of a pencil.
the pencil sharpener was made in 1828
At first , the eraser was not put on pencils . But then , 150 years ago a brilliant man put the eraser on the pencil . That helped us to not make as many mistakes . So , I suggest that you worship the man that put the eraser on the pencil if you want to be more perfect .....
Where the pencil shavings come out of, get a pointed pencil and put it in and pick it out!
pencil earser
three uses of an eraser is a white board eraser a pencil eraser and a black board eraser
The end of the pencil were the eraser is.
1.75
A Pencil is easier to balance on it's eraser because the eraser has a more flater surface.
A mechanical pencil or propelling pencil is a pencil with a replaceable and mechanically extendable pencil lead.The eraser is fitted on top of the pencil at the opposite end to the lead.The maximum length of the eraser would be no more than half an inch when new.
an eraser...like a pencil eraser
Take the top off and remove the eraser - most likely there are extra lead refills inside.
no it is not. if you touch a pencil it will break.
take off the back metal cap, pull out the eraser, pull out the brownish thing that holds the eraser then put the lead on the out side of the gold thing. if you try to put it in the gold thing the lead will get jammed in the mechinism therefore ruining the pencil