1870s 1880s 1890s 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s
1947
1949
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1948

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233G Three-Slot Payphone
233G Three-Slot Payphone
Western Electric
Chocolate North H6
Chocolate North H6
North Electric
Siemens and Halske FG tst 264
Siemens and Halske FG tst 264
Siemens
Siemens W48 Phone
Siemens W48 Phone
Deutsche Bundespost/Telekom Siemens
TN Mangau III phone
TN Mangau III phone
H. Fuld & Co./TN
Automatic Electric acquires Gray Manufacturing Co.
Automatic Electric acquires Gray Manufacturing Co.
PDF: AT&T Annual Report, 1948
AT&T Annual Report, 1948
Ad: Bell System
Bell System
Video: Movie Theater Newsreel (AT&T)
Movie Theater Newsreel (AT&T)
England catches up with postwar telephone demand
England catches up with postwar telephone demand
PDF: Masterphone 1000 Brochure
Masterphone 1000 Brochure
Video: Crystal Clear
Crystal Clear
Telephone lineman on cover of Saturday Evening Post
Telephone lineman on cover of Saturday Evening Post
PDF: Plan For Telephones At Home Bell System 1948
Plan For Telephones At Home Bell System 1948
Video: Bottle of Magic (The Vacuum Tube)
Bottle of Magic (The Vacuum Tube)
Shannon publishes A Mathematical Theory of Communication
Claude Shannon
PDF: Planning For Telephones In Large Buildings
Planning For Telephones In Large Buildings
Video: Sorry, Wrong Number
Sorry, Wrong Number