Search results
Results from the WOW.Com Content Network
In phones connected to magneto exchanges, the bell, induction coil, battery, and magneto were in a separate bell box called a "ringer box". In phones connected to common battery exchanges, the ringer box was installed under a desk, or other out of the way place, since it did not need a battery or magneto.
11 February 1876: Elisha Gray invents a liquid transmitter for use with a telephone, but he did not make one. 14 February 1876 about 9:30 am: Gray or his lawyer brings Gray's patent caveat for the telephone to the Washington, D.C. Patent Office (a caveat was a notice of intention to file a patent application.
By 1920, assets were $1.4 billion; local revenue was $301 million; long-distance revenue was $142 million; profit was $48 million, and there were 231,000 employees. By 1950, assets had climbed to $10.3 billion; local call revenue was $2.0 billion and toll revenue was $1.2 billion, with a profit of $367 million, and 535,000 employees.
Phone Booths. 1878-2011 Before phones were pocket-sized supercomputers, people had to stop if they wanted to make calls on the go. The places they stopped to make those calls were phone booths ...
Beginning in the early 1950s, 500-style phones were also made under license by ITT Kellogg (now Cortelco), who continued manufacturing the original rotary design, marketed as the Cortelco ITT-500AS (desk phone) and Cortelco ITT-554AS (wall phone), until discontinuation on January 1, 2007.
Despite ceasing new production, many candlestick telephones remained in operation, maintained by the telephone companies in the 1940s and into the 1950s. Many retro-style versions of the candlestick telephone were made, long after the original phones were obsolete, by companies such as Radio Shack and the Crosley Radio company.
There were still some car phones available as recently as 2008, including the Nokia 810 and the Motorola VC6096 for use with GSM networks and a car phone made by NAL Research for the Iridium satellite network. Motorola provided US customers with the m800 and m900 car phones, for use with CDMA and GSM networks respectively.
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.