Pada tahun 1858, Hyman Lipman dari Philadelphia, Pennsylvania, AS, menerima paten pertama untuk pelekatan penghapus pada ujung pensil.
' Cause he is a very talented advertising executive, a knowledgeable sports fan and a wagering enthusiast but most impressively, he is one hell of a singer, and he has prepared a little musical snack for his new special friendWikiMatrix WikiMatrix