Books about Inventions
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Famous days in the century of invention
Gertrude L. Stone and M. Grace Fickett
572 downloads
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Great Facts
Frederick C. Bakewell
567 downloads
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Inventors & Inventions
Henry Robinson
547 downloads
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O odkryciach i wynalazkach
(Polish)
Bolesław Prus
498 downloads
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Discoveries and Inventions: A lecture by Abraham Lincoln delivered in 1860
Abraham Lincoln
468 downloads
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The Art of Inventing
Edwin J. Prindle
459 downloads
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Learn to Invent, First Steps for Beginners Young and Old
Samuel Evans Clark
435 downloads