01) Escalator – (Invented) by Nathan Ames, Solicitor
02) ATM – by Luther Simijan, Medicine Dropout
03) Elevator – by Elisha Otis, Wagon-driver
04) Traffic Signal – by William L Potts, Policeman
05) Printing Press – by Johannes Gutenberg, Goldsmith
06) Barbed Wire – by Joseph Glidden, Farmer
07) Windshield Wiper blade – by Mary Anderson, Rancher
08) Coffee – by Kaldi, Shepherd
09) Restaurants - by Al-Muqaddasi, Geographer
10) Zebra Crossing – by Ernest Marples, Public Servant
11) Safety Pin – by Walter Hunt, Mechanic
12) Photocopier – by Chester Floyd Carlson, Solicitor
13) Cash register – by James Ritty, Saloon-keeper
14) Wheel – by unknown Mesopotamian Tradesman
15) Crossword Puzzle – by Arthur Wynne, Editor
16) Fire Extinguisher – by George Manby, Captain
17) Seat Belt – by George Cayley, Baron
18) Beer – by Unknown Neolithic Hunter
19) Ambulance – by Knights of St.John
20) Bicycle – by Ernest Michaux, Carriage maker
21) Bifocals – by Benjamin Franklin, President
22) Balloons – by Michael Faraday, Professor
23) Brassiere - by Mary Phelps Jacon, Socialite
24) Bulldozer – by Benjamin Holt, Sawmill Merchant
25) Clock – by Tycho Brahe, Astronomer
26) Modern Roads – by John Metcalf, Blind Fiddler
27) Matchsticks – by Robert Boyle, Physicist
28) Mirror – by Unknown Roman Silversmith
29) Safety Razor – by King C Gillette, Travelling Salesman
30) Tea – by Unknown Chinese Apothecary
