1877
1879
Bell (Charles Williams) coffin subscriber set
Phelps/Western Union Double Crown Telephone
Wall phone with two butterstamp receiver/transmitters
Coy opens the first telephone exchange (in New Haven)
New England Telephone formed as first Bell local operating company
Japan reproduces Bell telephones
First telephone directory published
Blake invents and patents his carbon microphone transmitter
Watson invents a ringer that rings
Hilda Simonsson marries Lars Ericsson, and helps run the business
Theodore Vail joins Bell as General Manager
Bell sues Western Union for patent infringement
Emma Nutt becomes first female telephone operator
