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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. Rolling code - Wikipedia

    en.wikipedia.org/wiki/Rolling_code

    34 bits are not encrypted: a 28-bit serial number, 4 bits of button information, and 2 status bits (repeat and low battery indicators). 32 bits are encrypted (the rolling code): 4 bits of button information, 2 bits of OVR (used to extend counter value), 10 bits of DISC (discrimination value; often the low 10 bits of the serial number), and a 16 ...

  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. Valerie Bertinelli defends posting bikini photo: 'I don't ...

    www.aol.com/valerie-bertinelli-defends-posting...

    She addressed her note to her 1.6 million followers on Instagram, saying that "to all of you that would sit in judgment of my body, the photo, and my reason for posting it, I hope you find a place ...

  6. Costco's most expensive cruise sale this year was a $293K ...

    www.aol.com/news/costcos-most-expensive-cruise...

    The CFO said the journey cost $293,000 for two travelers in the ship's owner's suite and included $13,000 in shipboard credits, as well as a $25,000 Costco Shop card.

  7. Fire alarm notification appliance - Wikipedia

    en.wikipedia.org/wiki/Fire_alarm_notification...

    In 1970, Space Age Electronics introduced the first visual notification appliance, the AV32 light plate (which was installed over an existing horn) and V33 remote light. Meanwhile, in 1976, Wheelock introduced the first horn/strobe notification appliances with its 7000 series. The majority of visual signals throughout the 1970s and 1980s were ...

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