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History of Phones
Osasere Guobadia
first period
Created by
Osasere Guobadia
⟶ Updated 6 months ago ⟶
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Events
*First telephone ( 1870s - 1940s)
The first telephone call
www.americaslibrabrary.gov
How Graham Bell invented the first telephone
Functional design (1876-1947)
The invention of transistors
When was it uncovered?
Different types of services
Battery Systems
What was the telettrofoni used for?
sound transmission
The first cell phone call
The first smartphone
Samsung's Galaxy X
cellphones camras
First female telephone opeerator
The first car phone
The first telegram
The First iPhone announced
First iphone relesed
Periods
the Development of the telephone
Telephone Line
