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... e protection of inventions for a certain period.
The term of validity is ten years. At first, it was three years, but gradually it became longer and longer.
The fifth head of the Yurinova family, Vassily, had once lobbied the emperor to establish this system. At that time, he invited famous inventors from other countries to come to Yurinova to make inventions that would help improve mining and the iron manufacturing, and they were very successful. So, to encourage them to stay for a ...
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