PATEN4D Situs Terpecaya No 1 Indonesia

paten4dPATENT definition: 1. the official legal rht to make or sell an invention for a particular number of years: 2…. Learn more.Patented inventions have, in fact, pervaded every aspect of human life, from electric lhting (patents held by Edison and Swan) and plastic (patents held by Baekeland), to ballpoint pens