Which innovative device was NOT invented by Thomas A. Edison?

The television is the correct choice, as it was not invented by Thomas A. Edison. While Edison was a prolific inventor and made significant contributions to technology in the late 19th and early 20th centuries, the technology for television developed later, around the 1920s and 1930s. Early inventors associated with the development of television include John Logie Baird and Philo Farnsworth.

Edison is credited with the invention of the phonograph, which was the first device capable of recording and reproducing sound. He also improved the incandescent light bulb, making it practical for widespread use, and developed a dynamo for generating electric power, contributing to the establishment of electrical systems in urban areas. His inventions helped shape the modern electrical age, but the innovations related to television came long after his major contributions.