Inventions Who invented Fountain Pen? Sir Frank Whittle Lewis E. Waterman John J. Loud Kirkpatrick Macmillan Sir Frank Whittle Lewis E. Waterman John J. Loud Kirkpatrick Macmillan ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the first solid state integrated circuit demonstrated? 1960s 1980s 1970s 1950s 1960s 1980s 1970s 1950s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Gunpowder? Leo H Baekeland Roger Bacon G. Ferdinand Von Zeppelin Sir Frank Whittle Leo H Baekeland Roger Bacon G. Ferdinand Von Zeppelin Sir Frank Whittle ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the Seed Drill? Jethro Tull Woodie Guthrie Arlo Guthrie Thomas Hines Jethro Tull Woodie Guthrie Arlo Guthrie Thomas Hines ANSWER DOWNLOAD EXAMIANS APP
Inventions What device for new parents did Ann Moore invent in 1969? Disposable diaper Bottle warmer Infant carrier Baby monitor Disposable diaper Bottle warmer Infant carrier Baby monitor ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Gramophone? Thomas Alva Edison Sir Alexander Graham Bell Michael Faraday Fahrenheit Thomas Alva Edison Sir Alexander Graham Bell Michael Faraday Fahrenheit ANSWER DOWNLOAD EXAMIANS APP
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