invention articles - Page: 13
Who invented contamination monitoring?
Who invented cyclist safety tech?
What were zippers first called?
Who invented nitrogen removal processes?
Did Nikola Tesla invent the lightning rod?
Who invented the lightning rod and when?
Did Canada invent time zones?
When did Velcro become mainstream?
Who started helmets to hardhats?
Who invented the puffin crossing?
What did Thomas E. Murray invent?
Did Benjamin Banneker invent anything?
Who invented the crosswalk signal?
Why did Melitta Bentz invent the coffee filter?
Who created fuses?
When was the first ironing board invented?
What was the first item to be invented?
Who invented queueing?
Who invented the air purifier?
Who made the pen in the world?
What impact did the gramophone have on society?
When did gas-powered cars become popular?
Who invented the highway system in the world?
