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  2. Kellogg Switchboard and Supply Company - Wikipedia

    en.wikipedia.org/wiki/Kellogg_Switchboard_and...

    Kellogg company logo as used from the 1920s to the 1950s. The Kellogg Switchboard and Supply Company was an American manufacturer of telecommunication equipment. Anticipating the expiration of the earliest, fundamental Bell System patents, Milo G. Kellogg, an electrical engineer, founded the company in 1897 in Chicago to produce telephone exchange equipment and telephone apparatus.

  3. Wireless keyboard - Wikipedia

    en.wikipedia.org/wiki/Wireless_keyboard

    A Bluetooth keyboard is a wireless keyboard that connects and communicates with its parent device via the Bluetooth protocol.These devices are widely used with portable devices such as smart phones and tablets, though they are also used with laptops and ultrabooks.

  4. Electric switchboard - Wikipedia

    en.wikipedia.org/wiki/Electric_switchboard

    A low-voltage switchboard A modern electric switchboard. An electric switchboard is a piece of equipment that distributes electric power from one or more sources of supply to several smaller load circuits. It is an assembly of one or more panels, each of which contains switching devices for the protection and control of circuits fed from the ...

  5. List of keyboard switches - Wikipedia

    en.wikipedia.org/wiki/List_of_keyboard_switches

    Brand OEM Switch name Cherry MX equivalent Switch Type Actuation force Tactile force Actuation point Total travel Product code Durability (actuations) Cherry

  6. Telephone switchboard - Wikipedia

    en.wikipedia.org/wiki/Telephone_switchboard

    PBX switchboard, 1975. A telephone switchboard is a device used to connect circuits of telephones to establish telephone calls between users or other switchboards. The switchboard is an essential component of a manual telephone exchange, and is operated by switchboard operators who use electrical cords or switches to establish the connections.

  7. Trump's new tariff threat lifts steel and aluminum shares ...

    www.aol.com/trumps-tariff-threat-bolsters-stock...

    U.S. stocks closed higher as investors snatched up aluminum and steel shares on President Trump's plan for a 25% tariff on those imports.