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1 апр 1819 г. - René Laënnec invents the stethoscope.

Описание:

this lets people hear the beats of tour heart

Добавлено на ленту времени:

inventions

Bysam
17 окт 2017

Дата:

1 апр 1819 г.
Сейчас
~ 205 г назад

Изображения:

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