American Inventor

Semi-Final 2 (1x9)

Ημερομηνία προβολής: Απρ 27, 2006

In the second semi-finals episode (out of four), judge Mary Lou Quinlan mentors three of the semi-finalists as they each use their $50,000 prize money to better their products. In the end, she must select only one to move on to the final round.