African American Inventors Crossword Puzzle JR GD

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Across
  1. 4. Invented the Home Security in 1966
  2. 8. Invented the gas mask in 1923
  3. 9. Invented America's first clock in 1790
Down
  1. 1. Invented the Improved electrical resistor in 1959
  2. 2. Invented the potato chip in 1853
  3. 3. Invented the electronic microphone in 1962
  4. 4. Invented computer inventions in 1980
  5. 5. Invented the special steamboat propeller in 1887
  6. 6. Invented the super soaker toy in 1987
  7. 7. Invented the automatic lubricator in 1916