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2. The Genie Company - Wikipedia

   en.wikipedia.org/wiki/The_Genie_Company

   In May 1954, the Alliance Manufacturing Company first produced its own garage door opener and called it Genie. [2] In 1983 the company entered the home and shop vacuum market, and in 1985 it changed its name to Genie Home Products. [2] Overhead Door Corporation purchased the company in 1994. [2] The Genie Company is headquartered in Mt. Hope ...

3. Garage door opener - Wikipedia

   en.wikipedia.org/wiki/Garage_door_opener

   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.

4. Rolling code - Wikipedia

   en.wikipedia.org/wiki/Rolling_code

   Remote controls send a digital code word to the receiver. If the receiver determines the codeword is acceptable, then the receiver will actuate the relay, unlock the door, or open the barrier. Simple remote control systems use a fixed code word; the code word that opens the gate today will also open the gate tomorrow.

5. List of building and structure collapses - Wikipedia

   en.wikipedia.org/wiki/List_of_building_and...

   AdventHealth Orlando parking garage crane collapse Orlando, Florida, United States: Parking garage 1 injured [65] 2021 Lagos high-rise: Ikoyi, Lagos, Nigeria Apartments (under construction) 42 dead [66] 2022 Nemiga pedestrian bridge Minsk, Belarus Bridge 0 dead or injured [67] 2022 Gwangju construction site collapse: Gwangju, South Korea

6. Category:Garage door openers - Wikipedia

   en.wikipedia.org/wiki/Category:Garage_door_openers

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7. Progressive collapse - Wikipedia

   en.wikipedia.org/wiki/Progressive_collapse

   Progressive collapse is the process where a primary structural element fails, resulting in the failure of adjoining structural elements, which in turn causes further structural failure. [ 1 ] Progressive collapses may be accidental, as the result of design deficiencies, fire, unintentional overload, material failure or natural phenomenon (e.g ...