Name this invention.
Cash Register
Name this invention.
Sewing machine
Delivery service - officially opened in 1860
Pony Express
Name this invention.
Spinning Jenny
Name this invention - the actual inventor, however, is disputed.
Lightbulb
Name this invention. First words were: "Mr. Watson, come here. I want to see you."
Telephone
Name this invention.
Cotton Gin
Which invention is this?
Escalator
What is this?
Combine Harvester
This is what?
Battery
What are these?
Interchangeable parts
What is this interesting contraption?
Carpet Sweeper
What is this? This is one of the first of its kind.
Telegraph machine
What is this?
Morse Code
This is what?
Washing machine
This is what?
Steel-tipped plow
