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Inventors & Inventions II Dots & Dashes

Given the INVENTION, identify the INVENTOR(S)
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Enter in the box the number corresponding to the right answer
Refrigerator     1James Harrison, Alexander Catlin
Gunpowder     2John Napier
Logarithmic Tables     3Roger Bacon
Internal Combustion Engine     4Otto
Rabies Vaccine     5Louis Pasteur

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