Twentieth century history - . inventors, History timeline of the early twentieth century the early twentieth century this was the last wave of the industrial era. Whitcomb . judson - wikipedia, free encyclopedia, Whitcomb l. judson (march 7, 1846 – december 7, 1909) was an american machine salesman, mechanical engineer and inventor. contents 1 early life 1.1 street railway 1. Zipper google doodle joins ‘ barrel roll ’ 11, In honor of the 132nd birthday of the inventor of the zipper, gideon sundback, google unveiled its latest “easter egg,” a full page zipper than unzips to reveal.