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  2. Chamberlain Group - Wikipedia

    en.wikipedia.org/wiki/Chamberlain_Group

    Clicker — a line of universal garage door remotes. 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 ...

  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. Garage door - Wikipedia

    en.wikipedia.org/wiki/Garage_door

    Sectional garage door Up-and-over garage door Garage Door Hardware. A garage door is a large door to allow egress for a garage that opens either manually or by an electric motor (a garage door opener). Garage doors are frequently large enough to accommodate automobiles and other vehicles. The operating mechanism is usually spring-loaded or ...

  5. 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.

  6. Digital Millennium Copyright Act - Wikipedia

    en.wikipedia.org/wiki/Digital_Millennium...

    Chamberlain developed a security protocol for its remotes that matched the remote to the door via software-based rolling code; this was intended to prevent unauthorized opening. Skylink utilized a resynchronization feature of the Chamberlain security software to create a universal remote that worked with the Chamberlain openers.

  7. Alice in Chains - Wikipedia

    en.wikipedia.org/wiki/Alice_in_Chains

    The original lineup in a 1988 promo. From left: Jerry Cantrell, Sean Kinney, Mike Starr, Layne Staley. Before the formation of Alice in Chains, Layne Staley, a drummer at the time, [13] [14] landed his first gig as a vocalist when he auditioned to sing for a local glam metal band known as Sleze after receiving some encouragement from his stepbrother Ken Elmer.

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