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It depends. For example, someone who works in an office might think a briefcase is the

most useful invention while someone who is a garbage man could care less about

briefcases. It really depends on what you think.

Well if your thinking about kids inventions, I'd personally say the top 5 would be:

TV, computer, CD player, mobile phone, footballs.. or somthing like that. I hope that helped!

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14y ago

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