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Graph : Patented in 1949 by a Spanish writer and teacher Ángela Ruiz…

Infographic : Patented in 1949 by a Spanish writer and teacher Ángela Ruiz…

Patented in 1949 by a Spanish writer and teacher Ángela Ruiz Robles, Enciclopedia Mecánica is widely considered a predecessor of the ebook | 🔖 #ebooks #books #facts More

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