'(Jimmy of the Clue Crew reports from Heritage Village in Cincinnati)  In 1874 this man invented the quadriplex system to handle 4 messages at once over one wire'
Thomas Edison
ED-UCATION: In 1874 this man invented the quadriplex system to handle 4 messages at once over one wire
In 1874 this man invented the quadriplex system to handle 4 messages at once over one wire
In 1874 this man invented the quadriplex system to handle 4 messages at once over one wire
"ED"-UCATION
Thomas Edison
"ED"-UCATION