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101 Inventions That Changed the World in the Last 100 Years
wristwatch with an LED display. It was also the first Pulsar watch. Unveiled in 1972, the price tag was $2100 — $12,700 when you account for inflation. 47. Electric can opener Small things tend to make life easier
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Top 100 Gadgets That Changed the World
revolutionary and actually expensive. Hamilton Pulsar, launched in 1972, was available for a solid $2100; to be fair, the case was made of gold, but a stainless-steel version soon followed, and anybody could