-
that was a great invention because
-
-
American, Elias Howe invents a sewing machine; Robert William Thomson patents the first vulcanized rubber pneumatic tire
-
Robert Mushet invents tungsten steel; J P Knight invents traffic lights
-
Thomas Edison invents the cylinder phonograph or tin foil phonograph; Eadweard Muybridge invents the first moving pictures
-
John Thurman patents the motor-driven vacuum cleaner