Notable Inventions of the 1830s
1830: Lawn mower: Edwin Beard Budding
1830: Stenotype on punched paper strip: Karl Drais
1831: Multiple coil magnet: Joseph Henry
1831: Magnetic acoustic telegraph: Joseph Henry (patented 1837)
1831: Reaper: Cyrus McCormick
1831: Electrical generator: Michael Faraday, ?nyos Jedlik
1834: The Hansom cab is patented
1834: Louis Braille perfects his Braille system
1834: Refrigerator: Jacob Perkins
1834: Combine harvester: Hiram Moore
1835: Photogenic Drawing: William Henry Fox Talbot
1835: Revolver: Samuel Colt
1835: Morse code: Samuel Morse
1835: Electromechanical Relay: Joseph Henry
1835: Incandescent light bulb: James Bowman Lindsay
1836: Samuel Colt receives a patent for the Colt revolver (February 24)
1836: Improved screw propeller: John Ericsson
1836: Sewing machine: Josef Madersberger
1837: Photography: Louis-Jacques-Mand? Daguerre
1837: First US electric printing press patented by Thomas Davenport (February 25)
1837: Steel plow: John Deere
1837: Standard diving dress: Augustus Siebe
1837: Camera Zoom Lens: Jozef Maximili?n Petzval
1837: Magnetic telegraph: Samuel Morse
1838: Electric telegraph: Charles Wheatstone (also Samuel Morse)
1838: Forerunner of Morse code: Alfred Vail
1838: closed diving suit with a helmet: Augustus Siebe
1839: Vulcanization of rubber: Charles Goodyear