Patented
61Bitless bridle — This article is about generally about a wide range of horse headgear without bits. For bridles with bits, see Bridle. For traditional bitless headgear, see Hackamore. A cross under bitless bridle A bitless bridle is a general term describing a… …
62History of structural engineering — The history of structural engineering dates back to at least 2700 BC when the step pyramid for Pharaoh Djoser was built by Imhotep, the first engineer in history known by name. Pyramids were the most common major structures built by ancient… …
63Lampe à incandescence halogène — Pour les articles homonymes, voir Lampe (homonymie). Deux types classiques de lampes à incandescence halogènes d intérieur …
64Doctrine of the General Talking Pictures Case — The Doctrine of the General Talking Pictures Case (or General Talking Pictures doctrine) is based on the decision of the United States Supreme Court in General Talking Pictures Corp. v. Western Electric Co.,[1] which legitimated so called field… …
65Soulé Steam Feed Works — U.S. Historic district Contributing property Mississippi Landmark …
66Barbiturates — (1903 and after) Although the organic chemical industry had introduced numerous sedatives before the barbiturates (chloral hydrate, for example, was first used in psychiatry in 1869), the barbiturates enjoyed great popularity for half a… …
67Iproniazid and the Monoamine Oxidase Inhibitors — (MAOIs) (from 1957). This is an early class of drugs noted to have a significant effect on depression. The prehistory: In 1937, Caecilia Pugh and Juda Hirsch Quastel (1899–1987) at the biochemical laboratory of Cardiff City Mental… …
68Phonograph — Turntable redirects here. For other uses, see Turntable (disambiguation). Edison cylinder phonograph ca. 1899 …
69Revolver — A revolver is a repeating firearm that consists of multiple chambers and at least one barrel for firing. As the user cocks the hammer, the cylinder revolves to align the next round with the barrel, which gives this type of firearm its name. In… …
70Invention — An invention is a new form, composition of matter, device, or process. Some inventions are based on pre existing forms, compositions, processes or ideas. Other inventions are radical breakthroughs which may extend the boundaries of human… …
