For all the ground-breaking innovations Leo Fender brought to the electric guitar, his contribution to the bass was even more revolutionary. In 1951, Fender launched the Precision Bass: the first successfully manufactured electric bass guitar ever. This was followed by other Fender icons like the Jazz Bass in 1960. But Leo didn't stop there. After the sale of Fender to CBS in 1965, he continued to design basses for Music Man in the '70s and later with G&L.