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  2. 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.

  3. Samsung Galaxy Z Fold 2 - Wikipedia

    en.wikipedia.org/wiki/Samsung_Galaxy_Z_Fold_2

    The Galaxy Z Fold 2 contains two screens: its front cover uses a 6.2-inch display in the center with minimal bezels, significantly larger than its predecessor's 4.6-inch display, and the device can fold open to expose a 7.6-inch display, with a circular cutout in the top center right replacing the notch along with a thinner border.

  4. Samsung Galaxy Z series - Wikipedia

    en.wikipedia.org/wiki/Samsung_Galaxy_Z_series

    The Galaxy Z Fold 2 5G was released on 18 September 2020, and is the second generation of Samsung's inward fold design introduced with the original Fold. It features a significantly larger front screen than its predecessor, a high refresh rate 120 Hz folding screen, minimal bezels and improved cameras. [ 9 ]

  5. 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 ...

  6. Samsung Galaxy Z Fold 4 - Wikipedia

    en.wikipedia.org/wiki/Samsung_Galaxy_Z_Fold_4

    The Z Fold 4 is powered by the Qualcomm Snapdragon 8+ Gen 1. [10] The device's included battery is a 4400 mAh dual-cell unit that fast charges via USB-C up to 25 W, or via wireless charging up to 15 W. The Z Fold 4 features three rear cameras, including a 50 MP wide-angle camera, a 12 MP ultra-wide camera, and a 10 MP telephoto camera.

  7. Chamberlain Group - Wikipedia

    en.wikipedia.org/wiki/Chamberlain_Group

    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.

  8. 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 ...

  9. Rolling code - Wikipedia

    en.wikipedia.org/wiki/Rolling_code

    An attacker may be able to learn the code word that opened the door just now, but the receiver will not accept that code word for the foreseeable future. A rolling code system uses cryptographic methods that allow the remote control and the receiver to share codewords but make it difficult for an attacker to break the cryptography.