[- Edison, Thomas -]

Thomas Alva Edison invented the following:

1. Wax paper
2. The mimeograph machine
3. The carbon telephone transmitter
4. The phonograph
5. The electric light
6. The magnetic ore separator
7. The radio vacuum tube
8. The motion picture camera
9. The dictating machine
10. A variety of Portland cement
11. An electric vote recorder
12. The duplex and automatic telegraph machine
13. A new kind of storage battery
14. An ore-crushing machine
15. The phonograph record
16. The chemical phenol
17. An electric pen
18. The three wire electrical wiring system
19. Underground electric mains
20. An electric railway car
21. A version of the stock ticker
22. An electric railroad signal
23. The light socket and light switch
24. A method for making synthetic rubber from goldenrod plants
25. A machine that, in his words, was "so sensitive that if there is life after death, it will pick up the evidence."