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Anti-sidetone circuit developed
1930 Anti-sidetone circuit developed event
Western Electric Hawthorne Works
1930 Western Electric Hawthorne Works
AT&T World Radio Telephone Chart
1930 AT&T World Radio Telephone Chart
Submarine cable
1930 Submarine cable
Telephone vs. Airplane
1930 Telephone vs. Airplane
He is calling you
1932 He is calling you
Map of Bell System Overseas Telephone Circuits
1933 Map of Bell System Overseas Telephone Circuits
'The multiplication of you'
1933 'The multiplication of you'
Communications Act of 1934
1934 Communications Act of 1934 event
AE 34 color brochure
1934 AE 34 color brochure
GPO phone
1934 GPO phone
Woman using pay phone 1930s
1934 Woman using pay phone 1930s event
Salvador Dali makes dial compact for Elsa Schiaparelli
1935 Salvador Dali makes dial compact for Elsa Schiaparelli event
Night rates to Europe
1935 Night rates to Europe
Buy a phone call
1935 Buy a phone call
Paris long distance central office
1936 Paris long distance central office
Special Sunday Rates
1936 Special Sunday Rates
Conference calling service
1936 Conference calling service
British Dictograph
1936 British Dictograph
Long Distance Rate Reductions
1937 Long Distance Rate Reductions
AT&T coaxial trunkline cross-section, 1949
1938 AT&T coaxial trunkline cross-section, 1949 event
Operators at 1939 World's Fair
1939 Operators at 1939 World's Fair
'Big in value'
1939 'Big in value'
Conference Telephone Service
1939 Conference Telephone Service