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TOPCON was established in September 1932 [4] based the merger of the surveying instruments division of K. Hattori & Co., Ltd. (now known as Seiko Holdinge Corporation) in order to manufacture the optical instruments for the Japanese Army.
Some common features of 35mm SLR photography were first seen on the Topcon RE Super. Among these is the through-the-lens exposure metering. This enabled improved exposure accuracy, especially in close-up macro photography using bellows or extension rings, and in telephotography with long lenses. In addition to this feature, the metering is at ...
Oscilloscope OL-1 from 1954, the company's first with a relatively small 3-inch CRT which allowed for a highly competitive price of US$ 29.50 (equivalent to $335 in 2023) for the DIY kit. [1] Heathkit is the brand name of kits and other electronic products produced and marketed by the Heath Company.
The company was founded in 1943 by radio design engineer Robert L. Drake. The company began as a manufacturer of low pass and high pass filters for the government and amateur radio market, and after World War II, produced amateur radio transmitters and receivers and communications receivers for maritime mobile service.
The Precision Shoulder-fired Rocket Launcher-1 also known as the (PSRL-1) is a modified American copy of the Soviet/Russian RPG-7 shoulder-fired rocket-propelled grenade launcher developed by AirTronic USA.
The one known subclade of H5 is H5a, defined by T4336C in the control region, which has its own subclades of H5a1 and H5a2. [3] H5a is thought to be around 7000–8000 years old, in other words, the mutation T4336C probably occurred c. 5500 BC. It is fairly evenly distributed at low levels across Europe.
Estes Industries was founded by Vernon Estes in 1958; in 1961, the company moved to a 77-acre tract of land on the outskirts of Penrose, Colorado. [10] [1] In 1969, Vernon sold the company to the Damon Corporation of Needham, Massachusetts, a company which also purchased a number of other hobby companies including a smaller competitor of Estes, Centuri Engineering of Phoenix, Arizona.
The SH-AWD all-wheel-drive system was lauded by Popular Science as one of the best automotive innovations of 2004, and earned the 2005 "Tech Car of the Year" from CNET.com. [40] In a comparison of 2006–2007 model year mid-luxury sedans with all-wheel drive (prices ranging from $60,000 to 65,000 CAD), the RL compared favorably to a Mercedes ...