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High-tech sticks could help visually impaired people spot obstacles and even identify acquaintances as they approach. Larry Greenemeier reports
Learn more about your ad choices. Visit megaphone.fm/adchoices
Release date
Lydbog: 26. maj 2015
Fakta
High-tech sticks could help visually impaired people spot obstacles and even identify acquaintances as they approach. Larry Greenemeier reports
Learn more about your ad choices. Visit megaphone.fm/adchoices
Release date
Lydbog: 26. maj 2015
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