Griņevičs I. Development of Inventors’ Activities in Latvia: Inventors’ Societies, Exhibitions, Patents and the Rationalizers’ Movement. HESIHE [Internet]. 2020 Oct. 28 [cited 2026 Mar. 6];4:31-54. Available from: https://hesihe-journals.rtu.lv/hesihe/article/view/HESIHE.2020.003