Filter AT&T / Bell System by: key events (25) annual reports (27) technical (5) brochures (3) history (3) books/booklets (2) educational (2)
The Crossbar System Bell Labs
📄 Open PDF
The Crossbar System Bell Labs
1939
Design Standards Coin Telephone Signs Bell System
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Design Standards Coin Telephone Signs Bell System
1966
Graphic Standards Manual Bell System
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Graphic Standards Manual Bell System
1970
Building Identification Manual Bell System
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Building Identification Manual Bell System
1974
Public Telephone Instruction Card Manual Bell System
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Public Telephone Instruction Card Manual Bell System
1980