1. Leo H Baekeland   Power Loom   Jet Engine   Carburettor   Bakelite   Hint Half-n-half Clue   2. Sir Isaac Pitman   Electric Furnace   Fountain Pen   Shorthand   Rabies Vaccine   Half-n-half Clue   3. Lewis E. Waterman   Fountain Pen   Electric Battery   Refrigerator   Internal Combustion Engine   Half-n-half Clue   4. Edmund Cartwright   Galvanometer   Power Loom   Bakelite   Electric Motor (AC)   Half-n-half Clue   5. Johann Gutenberg   Electronic Computer   Printing Press   Electric Battery   Bakelite   Half-n-half Clue   6. Karl Benz   Galvanometer   Power Loom   Electric Flat Iron   Automobiles using gasoline   Half-n-half Clue   7. John J. Loud   Electric Motor (AC)   Laboratory Gas Burner   Ball-Point Pen   Galvanometer   Half-n-half Clue