29
/ru/
ru
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
157047
12746
2
Создать
Public Timelines
Библиотека
FAQ
For education
Cabinet
For educational institutions
For teachers
For students/pupils
7 май 1960 г. - Voice Recording
Описание:
a sound spectrograph discovered to be able to record voices.
Добавлено на ленту времени:
16 окт 2017
0
0
473
Kyana
forensics
Дата:
7 май 1960 г.
Сейчас
~ 64 г назад