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  2. Pager - Wikipedia

    en.wikipedia.org/wiki/Pager

    Pagers were developed in the 1950s and 1960s, [3] ... It also marked one of the first consumer applications of the transistor (invented by Bell Labs in 1947), for ...

  3. Al Gross (engineer) - Wikipedia

    en.wikipedia.org/wiki/Al_Gross_(engineer)

    Another breakthrough came in 1949 when he adapted his two-way radios to one-way for cordless remote telephonic signaling. He had effectively invented the first telephone pager system. His intention for this system was to be used by medical doctors, but was met with skepticism by doctors who were afraid the system would upset patients. [6]

  4. Switchboard operator - Wikipedia

    en.wikipedia.org/wiki/Switchboard_operator

    Dial phones were invented in the 1930s but took years to become standard. New Hampshire switched to dials town by town from 1950 to 1973. [ 18 ] Switchboards and operators were an integral part of the telecommunications system until the introduction of electronic switching systems in the mid-20th century.

  5. Who still uses pagers anyway? - AOL

    www.aol.com/news/still-uses-pagers-anyway...

    The UK's NHS was using around 130,000 pagers in 2019, more than one in 10 of the world's pagers, according to the government. More up-to-date figures were not available.

  6. Timeline of North American telegraphy - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_North_American...

    Two wires were laid, Number 16 copper wire, covered by cotton thread with shellac, and a covering mixture of "beeswax, resin, linseed oil, and asphalt.". [ 4 ] 1 May 1844 : Test of line conveys news of the Whig Party's nomination of Henry Clay for U.S. President from the party's convention in Baltimore to the Capitol Building in Washington.

  7. Who made the exploding pagers? A messy global trail ... - AOL

    www.aol.com/news/made-exploding-pagers-messy...

    The company’s founder and president, Hsu Ching-kuang, told reporters on Wednesday that the pagers were made by another company licensed to use its brand.

  8. The era of ‘invented in California, made in China’ is over ...

    www.aol.com/finance/era-invented-california-made...

    Beijing is “convinced that America is seeking to contain it and suppress its rise,” PM Lawrence Wong argued on Sunday.

  9. Telegraphy in the United States - Wikipedia

    en.wikipedia.org/wiki/Telegraphy_in_the_United...

    They invented complex systems with a separate key for each letter of the alphabet. In 1832, Samuel Morse, an American artist, with help from scientist Leonard Gale, searched for a simpler idea for an electromagnetic recording system. Telegraphers would tap their fingers on a knob and the system imprinted dots and dashes onto a moving strip of ...