scientists
The answer is phonograph it was developed by a phonautograph.
Thomas Alva Edison was his full name.
Surprisingly, Thomas Edison's full name is Alva. Weird name, huh?
Thomas Edison's middle name is Alva.
Thomas Alva Edison
Thomas Edison's dog's name was Dot.
Samuel Edison, Jr. and Nancy Elliot Edison if you are referring to Thomas Alva Edison.
Thomas Edison's teacher's name was Reverend Engle.
samuel edison
Thomas Alva Edison
samuel edison
Alva