Inventions by Conor By gwen Mar 9, 1770 Weaving Mar 9, 1821 Braille Mar 9, 1840 Telegraph Mar 9, 1859 Submerine Mar 9, 1881 Lewis Howard Mar 9, 1896 hair perm Mar 9, 1899 rockets Mar 9, 1899 Rotary Blade Lawn Mower Mar 9, 1899 rubber heel shoes Mar 9, 1921 band aid Mar 9, 1935 automatic refridgeration Mar 9, 1962 Microphone Mar 9, 1967 liquid paper Mar 9, 1971 kerlar