Which American inventor is best know for his use of the assembly line for mass production in the automobile industry?

Henry Ford.

Explanation:

Henry Ford (1867-1947) is one the greatest tycoons of the US automobile industry. He had a vision and knew how to make it happen. He was the first industrialist who extensively used the assembly line in the mass production of cars; it turned into the standard production method from phonographs to hamburgers. But what probably allowed his extraordinary success was the business idea of fabricating a car for the masses, a car that could be bought and driven by common people, not only by rich people. That idea is simply grandiose and inspiring.

Henry Ford is best know for this.

Explanation:

Although he did not create the first car, he created the assembly line which was just a beneficial. The assembly line is where everybody has a certain job in making the object. Imagine you want to make a sandwhich as fast you can. You will make it much faster with your mom getting the bread, your dad putting on the cheese, and your brother putting on the turkey, than you doing all of these things by yourself. Hence the reason Henry Ford created the assemply line.