INVENTION YEARS answers

1/ Fruit Machine 1895

2/ Emails 1971

3/ Hovercraft 1955

4/ Video Game Console 1972

5/ Penicillin 1928

6/ Metal Detector 1874

7/ Microwave Oven 1946

8/ Biro 1938

9/ Incandescent Light Bulb 1879

10/ Laser Beam 1960 

11/ Military Tank 1915

12/ Powered Vacuum Cleaner 1901


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