Dacron, 1941. Inventors: J.R. Whinfield (1901-66), J.T. Dickson (England). First available 1950, marketed in USA.
![](https://syskool.com/wp-content/uploads/2013/12/dacron-wrap-1.jpg)
Dental Plate, 1817. Inventor: Anthony A. Plantson (USA) (1774- 1837).
![](https://syskool.com/wp-content/uploads/2013/12/preview_90_60424-1.jpg)
Dental Plate (rubber), 1855. Inventor: Charles Goodyear (USA) (1845-1921).
![](https://syskool.com/wp-content/uploads/2013/12/1334883597438-1.jpg)
Diesel Engine, 1895. Inventor: Rudolf Diesel (Germany) (1858-1913). Lower pressure oil engine patent by Stuart Akroyd, 1890. Diesel’s first commercial success, Augsberg, 1897.
![](https://syskool.com/wp-content/uploads/2013/12/news-gm-diesel-1-1.jpg)
Differential Calculus, 1684. Inventor: Gottfried Leibniz (Germany).
Disc Brake, 1902. Inventor: Dr. F. Lanchester (England). First used on aircraft 1953 (Dunlop Rubber Co.).
![](https://syskool.com/wp-content/uploads/2013/12/mex41-1.jpg)
Electric Battery, 1800. Inventor : Volta (Italian).
![](https://syskool.com/wp-content/uploads/2013/12/electric-car-battery-2-1.jpg)
Electric Blanket, 1946. Inventor: Simmons Co., Petersburg, Virginia, USA. Thermostatic control.
![](https://syskool.com/wp-content/uploads/2013/12/electric-blanket-review-1600x1200-1.jpg)
Electric Cooking Utensil, 1874. Inventor : St. George Lane-Fox
(England).
![](https://syskool.com/wp-content/uploads/2013/12/sandwich-toaster-1.jpg)
Electric Fan, 1882. Inventor : Wheeler (USA).
![](https://syskool.com/wp-content/uploads/2013/12/Kawasaki-Electric_Fan-1.jpg)
Electric Flat Iron, 1882. Inventor: H.W. Seeley (USA), New York City.
![](https://syskool.com/wp-content/uploads/2013/12/morphyironsection-1.jpg)
Electric Generation (Static), 1660. Inventor: Otto von Gueriche
(Germany).
![](https://syskool.com/wp-content/uploads/2013/12/download-9.jpg)
Electric Lamp, 1879. Inventor: Thomas Alva Edison (USA) (1847- 1931). First practical demonstration at Menlo Park, New Jersey.
![](https://syskool.com/wp-content/uploads/2013/12/download-1-4.jpg)
Electric Motor (DC), 1873.
Inventor: Zenobe Gramme (Belgium) (1826-1901). Exhibited in Vienna.
![](https://syskool.com/wp-content/uploads/2013/12/download-2-4.jpg)
Electric Motor (AC), 1888. Inventor: Nikola Tesla (USA) (1856-1943).
![](https://syskool.com/wp-content/uploads/2013/12/download-3-3.jpg)
Electromagnet, 1824. Inventor: William Sturgeon (England) (b. 1783); improved by Joseph Henry (USA) 1831.
![](https://syskool.com/wp-content/uploads/2013/12/download-4-2.jpg)
Electromagnetic Induction, 1831. Inventor: Michael Faraday (Great Britain); discovered previously, but not published, by Joseph Henry (United States).
![](https://syskool.com/wp-content/uploads/2013/12/download-10.jpg)
Electronic Computer, 1942. Inventor: J.G. Brainerd, J.P. Eckert, J.W. Mauchly (USA). ENIAC (Electronic Numerical Integrator and Circulator), University of Pennsylvania, Philadelphia.
![](https://syskool.com/wp-content/uploads/2013/12/download-1-5.jpg)
Elevator, 1852. Inventor: Elisha G. Otis (USA) (1811-61). Earliest elevator at N.Y.
![](https://syskool.com/wp-content/uploads/2013/12/download-2-5.jpg)