Thomas Jennings the inventor of dry cleaning and was the first black man to be granted a US patent African/American History Channel 3 years ago Share this: RelatedThomas Jennings the inventor of dry cleaning and was the first black man to be granted a US patentJanuary 25, 2019Similar postOn this day in 1887, Columbus, Ohio native Granville T. Woods patented the induction telegraph system. Ohio History Center 800 E. 17th Ave., Columbus Ohio, 43211November 29, 2019Similar postBlack inventors we never knew aboutJanuary 26, 2019Similar post
