Disc Brakes               1902     Dr. F Lanchester             Britain
Disc, Video               1972     Phillips co                  Holland
DNA, Structure            1951     Crick-UK,Watson-             --
                                   US,Wilkins-UK
Dynamo                    1832     Hypolite Pixii               France
Electric Flat Iron        1882     H.W. Seeley                  USA
Electric Lamp             1879     Thomas alva Edison           USA
Electric Motor (DC)       1873     Zenobe Gramme                Belgium
Electric Motor (AC)       1888     Nikola Tesla                 USA
Electric Iron             1882     Henry W.Seely                USA
Electric Washing Machine  1906     Alva J Fisher                USA
Electromagnet             1824     William Sturgeon             Britain
Electron                  1897     Thomson J                    Britain
Electroplating            1805     Luigi Brugnatelli            Italy
Electronic Computer       1824     Dr Alan M turning            Britain
Facsimile Machine         1843     Alexander Bain               Britain
Fibre-Optics              1955     Kepany                       Britain
Film (Moving Outlines)    1885     Louise Prince                France
Film (Talking)            1922     J. Engl, J.Mussolle & H Vogt Germany
Film (Musical Sound)      1923     Dr Le de forest              USA
Floppy Disk               1970     IBM                          USA
Frequency Modulation      1933     EH Armstrong                 USA
Frisbee                   1948     Fred Morrisson               USA
Fountain Pen              1884     Lewis E. Waterman            USA
Galvanometer              1834     Andre-Marie Ampere           France
Glider                    1853     Sir George Cayley            Britain
Gramophone                1878     Thomas Alva Edison           USA
Helicopter                1924     Etinne Oehmichen             France
Hiv                       1984     Martagnier                   France
Holography                1947     Denis Gason                  Britain
Hydrogen Bomb             1952     Edward Teller                USA
Intelligence Testing      1905     Simon Binet                  France
Jet Engine                1937     Sir Frank Whittle            Britain
Laser                     1960     Theodore Maiman              USA
Launderette               1934     J.F. Cantrell                USA
Lift (Mechanical)         1852     Elisha G Otis                USA
Lightning Conductor       1752     Benjamin Franklin            USA
Locomotive                1804     Richard Trevithick           Britain
Logarithms                1614     Napier                       Britain
Loom, Power               1785     E cartwright                 Britain
Loudspeaker               1900     Horace Short                 Britain
Machine Gun               1718     Richard Gatling              Britain
Magnetic Recording Tape   1928     Fritz Pfleumer               Germany
Match, Safety             1826     John Walker                  Britain
Microphone                1876     Alexander Graham Bell        USA
Microprocessor            1971     Robert Noyce & Gordon        USA
                                   Moore
Microscope,Comp           1590     Z.Janssen                    Netherlands
Microscopes, Elect        1931     Ruska Knoll                  Germany
Microwave Oven            1947     Percy LeBaron Spencer        USA
Motorcycle                1885     G. Daimler                   Germany
Movie Projector           1593     Thomas Edison                USA
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