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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
Correct answers are shown on the right
Randomly ordered list
- 1: Saxophone
- 2: Diesel engine
- 3: Dolby noise reduction system
- 4: Macintosh
- 5: Bakelite
- 6: Bessemer converter
- 7: Biro
- 8: Rubik's cube
- 9: Gillette safety razor
- 10: Gatling gun
Correctly ordered list
1: Macintosh 1823
2: Saxophone 1846
3: Bessemer converter 1856
4: Gatling gun 1862
5: Diesel engine 1892
6: Gillette safety razor 1901
7: Bakelite 1909
8: Biro 1938
9: Rubik's cube 1975
10: Dolby noise reduction system 1982