Free Printable!Who is Lewis Howard Latimer?Who really invented the lightbulb? It wasn't Lewis H. Latimer. It wasn't Thomas A. Edison.Lewis Howard Latimer invented the carbon filament among other devices. Did you know he helped a very famous inventor get patented?Latimer was the draftsman for Alexander Graham who invented the first telephone.☎This free printable is a brief timeline of notable inventor Lewis Howard Latimer's life. You need to download this product: For an introduction to S.T.E.M