A list of the inventions I know of is:
Telephone
Graphaphone
Wheat husker
Photophone
Metal detector
Hydrofoil
I may have missed some out, but I hope this helped anyway!
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Baby Bells
Alexander Graham Bell. Scroll down to related links and look at "Alexander Graham Bell - Wikipedia".
2
according to Einstein's IQ score which is 170 , we can expect that Alexander's IQ score might be 160-165
His siblings were Melville and Edward Bell.