Inventions kaun banega crorepati online
When were bar code scanners invented?
What Igor Sikorsky invented?
Jet engine airplane
Who was the first American female to patent her invention, a method of weaving straw with silk?
Who had an explosive idea and first patented DYNAMITE?
J. R. Gluber
What plaything was invented by Joe McVicker in 1956?
What drink was invented by Charles Leiper Grigg in 1929?
What type of system did Paul Nipkow, John Baird, and Charles Jenkins all invent?
Who came up with the idea for INSTANT MASHED POTATO?
What charge card, developed in 1950, was the first to be accepted nationally in the US?
When was the Raggedy Ann doll patented?
There are 10 questions to complete.