30
/pt/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
Public Timelines
FAQ
Menu
Public Timelines
FAQ
Public Timelines
FAQ
For education
For educational institutions
For teachers
For students
Open cabinet
For educational institutions
For teachers
For students
Open cabinet
Criar
Close
Create a timeline
Public timelines
Library
FAQ
Baixar
Export
Criar uma cópia
Premium
Incorporar ao site
History of hearing aids.
Atualizado 20 abr 2023
A brief evolution of the hearing aids.
0
0
43
Share
Autores
Created by
Nella Riju
List of Edits
Attachments
Comments
Peterborough Town Library
By
Nella Riju
25 mar 2023
0
0
66
Eventos
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
About & Feedback
Acordo
Privacidade
Biblioteca
2024
©
Time.Graphics
Support 24/7
Cabinet
Get premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL
Excellent (Trustpilot Reviews)
Based on 115+ reviews
Write your own review on
Trustpilot.com
Comments