14 март 1794 г. - south- cotton gin
Описание:
separates cotton fibers from their seeds allowing much greater productivity than manual cotton separation help one man to do 50 pounds a dayCotton gin. Image. Britannica School, Encyclopædia Britannica, 1 Nov. 2017. school.eb.com/levels/middle/assembly/view/215304. Accessed 20 Jan. 2018.
Добавлено на ленту времени:
Дата:
14 март 1794 г.
Сейчас
~ 230 г назад
