1. Leo H Baekeland   Bakelite   Electronic Computer   Vaccination   Hovercraft   Hint Half-n-half Clue   2. William Siemens   Power Loom   Automobiles using gasoline   Electric Furnace   Nylon   Half-n-half Clue   3. Andre-Marie Ampere   Galvanometer   Electric Furnace   Electric Flat Iron   Electronic Computer   Half-n-half Clue   4. Gottlieb Daimler   Galvanometer   Carburettor   Gunpowder   Rabies Vaccine   Half-n-half Clue   5. C. F. Brush   Microscope   Arc Lamp   Air Pump   Fountain Pen   Half-n-half Clue   6. Louis Pasteur   Rabies Vaccine   Logarithmic Tables   Stethoscope   Vaccination   Half-n-half Clue   7. Dr. William Stokes, Rene Laennec   Logarithmic Tables   Laboratory Gas Burner   Shorthand   Stethoscope   Half-n-half Clue