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1928
1930
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1929

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Bauhaus Dessau telephone
1929: Bauhaus Dessau telephone
Black GPO Model 162
1929: Black GPO Model 162
General Post Office/BT / Siemens
GPO 232 With Cheese Drawer
1929: GPO 232 With Cheese Drawer
General Post Office/BT
Stromberg-Carlson 1178
1929: Stromberg-Carlson 1178
Stromberg-Carlson
The U.S. has most of the world's telephones
1929: The U.S. has most of the world's telephones
AT&T Annual Report, 1929
📄 Open PDF
1929: AT&T Annual Report, 1929
PDF Annual-reports
AE 1A color brochure
1929: AE 1A color brochure
Ad
A Desert Span, Building Trunk Telephone Lines (AT&T)
1929: A Desert Span, Building Trunk Telephone Lines (AT&T)
Technology Wired Tech AT&T / Bell System
Henry Dreyfuss opens his industrial design firm
1929
Henry Dreyfuss
Things Worth Knowing About The Telephone
📄 Open PDF
1929: Things Worth Knowing About The Telephone
PDF Company-histories Educational
'Call by number' ad
1929: 'Call by number' ad
Ad
The Tele Skater Girls
1929: The Tele Skater Girls
Switching Workforce
Sallie Mead becomes first woman to hold a patent at AT&T
1929
Patents AT&T / Bell System Sallie Pero Mead