Cesar Martinez P.7 By martinez2213 Sep 13, 1851 washing machine Period: Sep 16, 1851 to Sep 16, 2001 cesar martinez7 Sep 16, 1862 TV Sep 16, 1931 Stereo Sep 16, 1943 computer Sep 16, 1947 microwave Sep 16, 1956 digital clock Sep 16, 1956 dgital watch Sep 16, 1973 cell phone Sep 16, 1981 laptop Sep 16, 2001 tablet