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17 July, 17:52

Which of the following statements is accurate?

a) the number of patent awarded remained steady between 1880 and 1883

b) overall, the number of patents awarded declined between 1870 and 1885

c) between 1880 and 1885, the number of patents awarded nearly doubled

d) the number of patents awarded first topped 15,000 in 1877

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Answers (1)
  1. 17 July, 18:07
    0
    The answer to the question is C
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