Invention general knowledge
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What Frank Whittle invented?
Who invented Gunpowder?
G. Ferdinand Von Zeppelin
Sir Frank Whittle
Leo H Baekeland
Which of the following was first patented by an Australian in 1889?
Who was the first American female to patent her invention, a method of weaving straw with silk?
Who invented fuel cells in 1839?
Sir William Grove
There are 5 questions to complete.