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Pages in category "Companies based in the Columbus, Ohio metropolitan area" The following 125 pages are in this category, out of 125 total. This list may not reflect recent changes .
It was founded in 1923 as the Alliance Manufacturing Company, located in Alliance, Ohio. At the time the company produced a broad line of consumer, industrial and military products. [ 2 ] In May 1954, the Alliance Manufacturing Company first produced its own garage door opener and called it Genie. [ 2 ]
Chamberlain — the company's do-it-yourself line of garage door openers. LiftMaster — the company's line of garage door openers for professional installers. Raynor — the company's line of garage door openers for professional installers. This line of professional installers is slightly less common than LiftMaster.
Modern manual door closer Eclipse door spring and separate checking mechanism. A door closer is a mechanical device that regulates the speed and action of a door’s swing. [1] Manual closers store the force used to open the door in some type of spring and reuse it to close the door. Automatic types use electricity to regulate door swing behavior.
In 1954, Dee Horton and Lew Hewitt invented the first sliding automatic door. The automatic door used a mat actuator. In 1960, they co-founded Horton Automatics Inc and placed the first commercial automatic sliding door on the market. [5] With the invention of the Gunn diode, microwave motion detectors became common in automatic doors in the ...
Kanawha and Ohio Railway: Ohio and Kentucky Bridge Company: C&O: 1886 1886 Covington and Cincinnati Elevated Railroad and Transfer and Bridge Company: Ohio and Little Kanawha Railroad: B&O: 1900 1966 Baltimore and Ohio Railroad: Ohio Midland Railroad: B&O: 1900 1915 Baltimore and Ohio Railroad: Ohio and Mississippi Railroad: B&O: 1848 1867 Ohio ...
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Ironton is a city in and the county seat of Lawrence County, Ohio, United States. [4] The population was 10,571 at the 2020 census.Located in southernmost Ohio along the Ohio River, it is 20 miles (32 km) northwest of Huntington, West Virginia, within the Huntington–Ashland metropolitan area.
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