29
/
en
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
Create
Public Timelines
Library
FAQ
For education
Cabinet
For educational institutions
For teachers
For students/pupils
Download
Export
Duplicate
Embed
40 views
0
0
History of hearing aids.
A brief evolution of the hearing aids.
Created by
Nella Riju
⟶ Updated 20 Apr 2023 ⟶
List of edits
Timelines by
Nella Riju
:
25 Mar 2023
0
0
66
Peterborough Town Library
Evolution of the Peterborough Town Library in New Hampshire.
Comments
Events
1600-the 1900s: The Trumpet Hearing Aid Age
1900-the 1920s: The Telephone Age
1920-40s: The Vacuum Tube Age
The 1950s-80s: The Transistor Hearing Aid Age
The 1980-the 2000s: The Digital Hearing Aid Age
