Inventions Who invented Bifocal Lens? Alfred B. Nobel Thomas Alva Edison Rudolf Diesel Benjamin Franklin Alfred B. Nobel Thomas Alva Edison Rudolf Diesel Benjamin Franklin ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Automobiles using gasoline? Kirkpatrick Macmillan Karl Benz Leo H Baekeland Evangelista Torricelli Kirkpatrick Macmillan Karl Benz Leo H Baekeland Evangelista Torricelli ANSWER DOWNLOAD EXAMIANS APP
Inventions What Thomas Davenport invented? Chesterfield Electric streetcar Sleeping (railway) car Screw propellor Chesterfield Electric streetcar Sleeping (railway) car Screw propellor ANSWER DOWNLOAD EXAMIANS APP
Inventions What Elisha Otis invented? Hydraulic Crane Jet Engine Turbine The brake used in modern elevators Hydraulic Crane Jet Engine Turbine The brake used in modern elevators ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Gunpowder? Leo H Baekeland Sir Frank Whittle G. Ferdinand Von Zeppelin Roger Bacon Leo H Baekeland Sir Frank Whittle G. Ferdinand Von Zeppelin Roger Bacon ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Bakelite? Roy Plunkett Henry Ford Leo Hendrik Baekeland Charles Goodyear Roy Plunkett Henry Ford Leo Hendrik Baekeland Charles Goodyear ANSWER DOWNLOAD EXAMIANS APP
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