<P> Important American technological contributions during the period of the Industrial Revolution were the cotton gin and the development of a system for making interchangeable parts , the latter aided by the development of the milling machine in the US . The development of machine tools and the system of interchangeable parts were the basis for the rise of the US as the world 's leading industrial nation in the late 19th century . </P>
<P> Important American technological contributions during the period of the Industrial Revolution were the cotton gin and the development of a system for making interchangeable parts , the latter aided by the development of the milling machine in the US . The development of machine tools and the system of interchangeable parts were the basis for the rise of the US as the world 's leading industrial nation in the late 19th century . </P>
important in facilitating the conversion of american industry to mass production was
important in facilitating the conversion of american industry to mass production was
The development of machine tools the system of interchangeable parts
The development of machine tools the system of interchangeable parts