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Car key in ignition Car ignition and steering wheel lock. A car key or an automobile key is a key used to open and/or start an automobile. Modern key designs are usually symmetrical, and some use grooves on both sides, rather than a cut edge, to actuate the lock.
This is a chronological index for the start year for motor vehicle brands (up to 1969). For manufacturers that went on to produce many models, it represents the start date of the whole brand; for the others, it usually represents the date of appearance of the main (perhaps only) model that was produced.
1959: The MOSFET (MOS transistor) is invented by the Egyptian Mohamed Atalla and the Korean Dawon Kahng at Bell Labs. It is used in almost all modern electronic products. It was smaller, faster, more reliable and cheaper to manufacture than earlier bipolar transistors, leading to a revolution in computers, controls and communication. [492] [493 ...
Sometimes inventions are invented by several inventors around the same time, or may be invented in an impractical form many years before another inventor improves the invention into a more practical form. Where there is ambiguity, the date of the first known working version of the invention is used here.
Keyrings were invented in the 19th century by Samuel Harrison. [ 1 ] The most common form of the keyring is a single piece of metal in a 'double loop'. Either end of the loop can be pried open to allow a key to be inserted and slid along the spiral until it becomes wholly engaged onto the ring.
In 1925, a modern-style opener, equipped with an additional serrated wheel, was invented to improve Lyman's design. [ 3 ] His other patents were dedicated to improvements to various household food utensils such as a refrigerating pitcher (1858), [ 6 ] fruit can lids (1862), [ 7 ] tea and coffee pots, [ 8 ] and a butter-dish. [ 9 ]
The Selden Road-Engine The Präsident automobile The first automobile in Japan, a French Panhard-Levassor, in 1898 Fiat 4 HP, the first car model produced by Italian manufacturer Fiat in 1899. The American George B. Selden filed for a patent on 8 May 1879. His application included the engine and its use in a four-wheeled car.
These experiences in toolmaking, metrology, and manufacturing steeped him in the 19th-century zeitgeist of interchangeability. He applied this expertise to the nascent motor industry as early as 1870 as a principal in the machine shop Leland & Faulconer, and later was a supplier of engines to Ransom E. Olds 's Olds Motor Vehicle Company, later ...