Inventors Inventions 345 History 115 Scientists 48 Statesmen 36 Printers 35 Electrical engineers 32 Gehiago ... Technological innovations 14 Technology 9 Businessmen 8 Engineers 8 Patents 8 Electrical engineering 7 Radio 6 Science 6 Telephone 6 Architects 5 Marine engineers 5 Robots 5 Will 5 Artists 4 Businesspeople 4 Discoveries in science 4 Electric utilities 4 Equipment and supplies 4 Industrial revolution 4 Research 4 Telegraph 4 Telegraph, Wireless 4 Adventure and adventurers 3 gutxiago ...