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The electric overhead garage door opener was invented by C.G. Johnson in 1926 in Hartford City, Indiana. [1] Electric Garage Door openers did not become popular until Era Meter Company of Chicago offered one after World War II where the overhead garage door could be opened via a key pad located on a post at the end of the driveway or a switch inside the garage.
Simple remote control systems use a fixed code word; the code word that opens the gate today will also open the gate tomorrow. An attacker with an appropriate receiver could discover the code word and use it to gain access sometime later. More sophisticated remote control systems use a rolling code (or hopping code) that changes for every use.
Chamberlain, LiftMaster, and Craftsman have interchangeable parts, primarily the gear and circuit boards. The greatest difference between the brands is that Chamberlain and Craftsman operate on a square shaped split-rail system, while LiftMaster consists of one single solid piece of inverted t-shaped rail.
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According to a new study published in Neurology, poor sleep is linked to a higher risk of dementia. Neurologists explain the link—and how to prevent dementia.
Telematics car insurance programs offer discounts up to 40% for letting insurers monitor your driving habits through a plug-in device or smartphone app, but the savings come with important privacy ...
Learn how to download and install or uninstall the Desktop Gold software and if your computer meets the system requirements.
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