Almon Strowger invents the automatic switch
Strowger forms Automatic Electric Company, and receives switch patent
First Strowger automatic exchange opens (in LaPorte, Indiana)
Strowger factory
Manual Telephones and Parts
Private Telephone Systems and Accessories
AE 40
Telephone Parts and Substation Accessories
Automatic Electric acquires Gray Manufacturing Co.
Monophones And Substation Accessories
This is Automatic Electric
The New Starlite
Modern Business Telephones
LP 3 Electronic Secretary Telephone Answering Set
GTE Pushbutton Telephone Service brochure