He invented the Interscan microwave landing system. This allows microwaves to guide aircraft to a safe landing.
He invented aspirin.
he invented love
he invented the stethescope
he invented smokes
I think they invented coins for trade, and they also invented a political system.
sony invented CD System in 1982
he invented the London sewage system
The neo-Babylonians invented the system of numbers
The Indus Valley invented a running pulmbing system.
Samuel Morse was the first to invent the telagrph
The braille system was invented in 1821.
He is a Filipino who invented the Karaoke Sing Along system.
they invented paprus ,black ink,a writing system, and beer
The elevator ('lift' in the UK). He did not invent the elevator(lift). He invented the elevator brake system.
No, that's one invention you can't credit to the Romans. But they did improve the layout of their towns by their famous grid system, of roads and buildings.
He invented the ammonia vapor-compression system used in refrigeration.