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13 apr 1913 anni - Hearing aid

Descrizione:

Hearing aids were made to help people who couldn't hear hear. They were first used in 1930 and invented by Miller Reese Hutchison.

Aggiunto al nastro di tempo:

21 feb 2019
0
0
57

Data:

13 apr 1913 anni
Adesso
~ 112 years ago

Immagini: