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  2. Keystone First - Wikipedia

    en.wikipedia.org/wiki/Keystone_First

    Keystone First is a medical assistance ( Medicaid and Medicare) managed care health plan based in southeastern Pennsylvania. Keystone focuses on low-income residents in southeastern Pennsylvania counties including, Bucks, Chester, Delaware, Montgomery, and Philadelphia. The healthcare provider currently serves over 400,000 residents in the area.

  3. Telephone exchange names - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange_names

    Kenmore 9392 is a five-pull (1L-4N) small-city telephone number for the Kenmore exchange in Fort Wayne, Indiana. MArket 7032 is a six-digit (2L-4N) telephone number. This format was in use from the 1920s through the 1950s, and was phased out c. 1960. BALdwin 6828 is an urban 3L-4N example, used only in the largest cities before conversion to ...

  4. Keystone module - Wikipedia

    en.wikipedia.org/wiki/Keystone_module

    Keystone module. A keystone module is a standardized snap-in package for mounting a variety of low-voltage electrical jacks or optical connectors into a keystone wall plate, face plate, surface-mount box, or a patch panel . Keystone modules have a rectangular face of 14.5 mm wide by 16.0 mm high and are held in place with flexible tabs.

  5. History of telephone numbers in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/History_of_telephone...

    From the introduction of the telephone in the late 1870s, [5] to the early 1990s, telephone numbers in most of the United Kingdom were usually shown with a written exchange name followed by the subscriber number, e.g. 'Mallaig 10' or 'Aberdeen 43342'. This allowed calls to be placed initially through the operator and later by using local or ...

  6. History of the telephone in the United States - Wikipedia

    en.wikipedia.org/wiki/History_of_the_telephone...

    The telephone played a major communications role in American history from the 1876 publication of its first patent by Alexander Graham Bell onward. In the 20th century, the American Telephone and Telegraph Company (AT&T) dominated the telecommunication market as the at times largest company in the world, until it was broken up and replaced by a system of competitors.

  7. History of the telephone - Wikipedia

    en.wikipedia.org/wiki/History_of_the_telephone

    Alexander Graham Bell was awarded the first U.S. patent for the invention of the telephone in 1876. Elisha Gray, 1876, designed a telephone using a water microphone in Highland Park, Illinois. Tivadar Puskás proposed the telephone switchboard exchange in 1876. Thomas Edison invented the carbon microphone which produced a strong telephone ...

  8. Keystone Resort - Wikipedia

    en.wikipedia.org/wiki/Keystone_Resort

    Keystone Resort. /  39.60500°N 105.95417°W  / 39.60500; -105.95417. Keystone Resort is a ski resort located in Keystone, Colorado, United States. Since 1997, the resort has been owned and operated by Vail Resorts. It consists of three mountains – Dercum Mountain, North Peak, and the Outback – and five Bowls (Independence, Erickson ...

  9. Independence Blue Cross - Wikipedia

    en.wikipedia.org/wiki/Independence_Blue_Cross

    Key people. Charles Pizzi, Chairman. Gregory E. Deavens, President and CEO. Website. www.ibx.com. Independence Blue Cross (Independence) is a health insurer based in Philadelphia, Pennsylvania, in the United States. [1] Independence is the largest health insurer in the Philadelphia area, serving people in the region and seven million nationwide.