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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
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27 янв 1774 г. - British industrialist John Wilkinson patents a method for boring cannon from the solid, subsequently utilised for accurate boring of steam engine cylinders

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27 янв 1774 г.
Сейчас
~ 251 г назад