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Резюме
Deutsch: Patent erteilt am 19. April 1910
Тэги
патентные чертежи
история лесного хозяйства
ломбардные тракторы
транспортировка леса в сша
патентные чертежи США
изобретения
Дата
19/04/1910
Источник
USPTO
Ссылка
Информация о правах
public domain