1. Z. Janssen   Airship (rigid)   Microscope   Refrigerator   Electronic Computer   Hint Half-n-half Clue   2. C. F. Brush   Refrigerator   Arc Lamp   Microscope   Fountain Pen   Half-n-half Clue   3. Andre-Marie Ampere   Electric Furnace   Electric Motor (AC)   Power Loom   Galvanometer   Half-n-half Clue   4. Karl Benz   Barometer   Power Loom   Air Pump   Automobiles using gasoline   Half-n-half Clue   5. Dr. Wallace H. Carothers   Transistor   Jet Engine   Refrigerator   Nylon   Half-n-half Clue   6. Christopher Cockerell   Hovercraft   Stethoscope   Transistor   Gunpowder   Half-n-half Clue   7. Leo H Baekeland   Jet Engine   Logarithmic Tables   Bakelite   Vaccination   Half-n-half Clue