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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
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13 янв 1971 г. - The estimated # of the United States production of osmium as a byproduct of copper refining was 2000 troy ounces (62 kg)

Добавлено на ленту времени:

30 окт 2019

Дата:

13 янв 1971 г.
Сейчас
~ 53 г назад