Science and Technology
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Inventions 0001 
Rearrange these inventions into the order in which their inventors first applied for a patent, beginning with the earliest at the top
To click and drag an item - place the cursor over the box you want to move, left click the mouse and keep pressure on the mouse button whilst moving the box to a different position
- 1: Bessemer converter
- 2: Rubik's cube
- 3: Gillette safety razor
- 4: Saxophone
- 5: Dolby noise reduction system
- 6: Diesel engine
- 7: Gatling gun
- 8: Macintosh
- 9: Biro
- 10: Bakelite
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