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Recently Patented Inventions
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Steel and Wooden Cars in the Subway Fire - p490
doi:10.1038/scientificamerican06161906-490
A Decade of Wireless Telegraphy - pp490 - 491
doi:10.1038/scientificamerican06161906-490b
The Need of a Pure-Food Law - p491
Charles Richards Dodge
doi:10.1038/scientificamerican06161906-491
The Magic Sphere—An Illusion Apparatus in Which Curious Optical Effects are Produced by Centrifugal Force - p493
Alfred Gradenwitz
doi:10.1038/scientificamerican06161906-493
The Latest and Largest Steamship - pp496 - 498
doi:10.1038/scientificamerican06161906-496
Tempered Ductile Metals - p500
Arthur F. Bresler
doi:10.1038/scientificamerican06161906-500