About 1809. See the link at the bottom of this page for more information.
eli whitney
the interchangeable parts where invented in 1798.
Eli Whitney invented the cotton gin and interchangeable parts.
a
the interchangeable parts where invented in 1798.
because they wanted new muskets so standard parts can be easily replaced.
to help muskets.
Machines and factories
He is known for his invention of the cotton gin and interchangeable parts. He also had a musket factory
In early America about 1809 by creator Eli Whitney.
He invented interchangeable parts
Eli Whitney invented the cotton gin and the interchangeable parts.