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David Vaughan
South San Jose Hills, California, United States
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June 4, 2018, 2:03 p.m. PDT
XPRIZE Visioneering 2018 - Design Challenge
replied a new topic to
Early Submission
June 4, 2018, 12:51 p.m. PDT
XPRIZE Visioneering 2018 - Design Challenge
registered for challenge
