Контрольные задания > 28. They _______ set up companies licensing Yablochkov's patents. From the mid-1880s, Yablochkov started to devote more of his time to the problems of generating electrical energy.

Вопрос:

28. They _______ set up companies licensing Yablochkov's patents. From the mid-1880s, Yablochkov started to devote more of his time to the problems of generating electrical energy.

Ответ:

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