Zusammenfassung der Ressource
TELEPHONE
EXCHANGE
SYSTEM
- 1920: Telephone Exchange System patent was
issued in Canada by The International
Western Electric Company & The Western
Electric Company
- 1925: The International
Western Electric Company (except Canada)
was sold to the International
Telephone & Telegraph Company
(ITT).
- 1926: ITT bought
Standard
Telephone and
Cables Ltd (STC)
- September
1948: Patent
issued for Radio
Beacon
Transmitter
- September
1960: Patent
issued for Colour
Television
apparatus
- September 1962:
Patent issued for R-F
tuning system
utilized in television
receivers
- August 1967: Patent
issued for
communication
systems (telephone
systems)
- June 1971:
Land-To-Mobile
Telephone Link
patent issued in
Canada
- Nov 1973: Patent
issued for a
Telecommunication
Systems
- June 1974:
Telephone Calls
Simulator patent issued
- 1996: Company
renamed ITT
Industries, Inc.
- 2006: changed its
name to ITT
Corporation
- 1925: The engineering
department of Western
Electric was incorporated as
the Bell Telephone
Laboratories
- 1926: Produced
equipment that
made sound
motion picture
practicable
- 1927: Gave first
public demo of
telephone by wire to
the secretary of
state Herbert Hoover
- 1928: Production of
step-by-step and panel dial
switching equipment to
replace manual central
office equipment
- 1931: Bell System
inaugurated
teletypewriter exchange
service whereby any
subscriber in the TWX
network could be
switched to any other
subscriber
- 1935: Walter
Gifford, AT&T
president, called T.G.
Mille, Vice President
of Long Lines
became the first
around the world
telephone
conversation
- 1935: Began work on the
handset telephone,
- 1937: Handset telephone
introduced and trial
began for a crossbar which
greatly improved the speed
of telephone calls which
made direct dialing a reality.
- 1938: First crossbar
office at Troy
Avenue in Brooklyn,
NY
- 1949: TV and
DATAPHONE
services introduced
- 1954: Color
Telephones
introduced
- 1958: CALL
DIRECTOR
introduced
- 1960:
Princess
telephone
introduced
- 1963: Trimline
telephone &
telephone set for
Touch-Tone introduced
- 1984: American Bell, Bell
Labs and Western Electric
were fully taken over by
AT&T, when then
becomes AT&T Technologies,
Inc.
- The Telecommunications Act of 1996,
allowed any communications
company to compete in each others
market. Therefore, AT&T to created a
three way merger and created Lucent
Technologies
- Alcatal-Lucent was created in 2006
through the merger of Lucent
Technologies and Alcatel
- 1946: Bell Systems introduce
first mobile telephone system
- 1939: The Federal
Government authorized
Western Electric to proceed
with the manufacture of
Signal Corps test tests
(first major contract with
World War II)
- Western Electric
Company sells
16,000,000 of its shares
to its employees on oct
29, 1929
- 1941: Remaining
shares of Western
Electric Company are
retired
- 1927: Telephone service began
between Mexico and the United
States
- 1924: Partnered up
with Warner Bros to
form the Vitaphone
Corporation, to
experiment in the
production and ound
motion pictures
- 1926: Developed a mobile
communication system
for New York police
department
- In 1914, the Bell Telephone
Company of Canada and the
Imperial Wire & Cable
Company Limited joined to
form The Northern Electric
Company Limited. Western
Electric owned 44% of this
company.
- 1956: Western
Electric
ended its
patent and
licensing
relationship
with Northern
Electric
- A lawsuit is filed against Western Electric
which forces the company to sell its share in
Northern Electric in 1956 to Bell Canada..
Northern Electric is no longer connected to
Western Electric.
- 1959: Northern
Electric Research
and Development
Laboratories is
established
- 1964: Bell
owned 100%
of Northern
Electric
- 1971: Northern
Electric Laboratories
became
Bell-Northern
Research (BNR),
jointly owned by Bell
Canada and Northern
Electric.
- BNR began developing
an electronic switching
system, which came to
market in 1972
- BNR in Canada was
equally owned by Bell
Canada (50%) and Northern
Electric (50%), which became
Nortel in 1995
- 1996: Nortel conssumed a
majority share in
BNR in
- 2009: Nortel files for
bankruptcy, and sells
off assets.
- 1990: Electronic Controlled Machining Circuit patent issued
- 1869: Western
Electric was
founded by Elisha
Gray & Enos M.
Barton