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Click on these inventions and drag them to the right places.Enlarge or reduce the image with the zoom and adjust its size to the screen of your device. You can also act on the image and drag it to cen ...
Display the list and select these inventions that correspond.Enlarge or reduce the image with the zoom and adjust its size to the screen of your device. You can also act on the image and drag it to ce ...
Place these inventions in chronological order.Enlarge or reduce the image with the zoom and adjust its size to the screen of your device. You can also act on the image and drag it to center it.
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