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  2. Griffon Corporation - Wikipedia

    en.wikipedia.org/wiki/Griffon_Corporation

    [28] [29] Clopay entered the plastic film and garage door business in 1952 and 1966, respectively. [14] It grew in the 1990s and 2000s, becoming a leading manufacturer of residential garage doors in the United States and one of the suppliers of plastic films for diapers, surgical gowns, and drapes.

  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. Platform screen doors - Wikipedia

    en.wikipedia.org/wiki/Platform_screen_doors

    The doors form a 2.5 m (8 ft 2 in) high glass and steel screen the entire length of the platform. The door opening is 2.1 m (6 ft 11 in) wide, and the system includes integrated passenger information and digital advertising screens.

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