Jethro Tull
The first tractors were steam powered vehicles in the 1860s.
Jethro Tull
Frederick Douglass
machine developed by Dr.john mauchly and j. presper eckert
Cyrus McCormack developed the reaping machine in 1831. A reaping machine is used to cut crops for harvest after they have ripened.
DOS.
to kill people
alexander bain
They developed a machine that converts pollutants into ink. For more information: netonplus.com/Unique-machine-converts-pollutants-into-ink-by-by-students-of-IIT-Delhi-36152016
Ashutosh Kumar
Hiram Maxim
A seed drill is typically used for planting grains. It is a machine that precisely plants seeds at specific intervals and depths in the soil.