Inventors Challenge By Christian Hall 1668 Anton von Leeuenhoek invents the microscope. 1821 Thomas L. Jennings invents a process for dry-cleaning delicate clothing 1837 Thomas L. Jennings invents a process for dry-cleaning delicate clothing 1853 Elisha Graves Otis invents the elevator break. 1873 Levis Strauss invented blue jeans. 1874 Elijah McCoy invents the ironing board. 1876 Alexander Graham Bell invents the telephone. 1879 Thomas Edison invented the light bulb. 1886 John Pemberton invented Coca-Cola. 1887 Alexander Miles invents automatic elevator doors. 1888 George Eastman invented the first handheld camera and rolled film. 1903 Edwin Binney and Harold Smith invent Crayola Crayons. 1903 Thomas Edison invented the light bulb. 1981 Dr. Patricia Bath invents a Laserphaco Probe. 1983 Whitcomb L. Judson invents the zipper.