Gravity-vacuum transit
Gravity-vacuum transit (GVT) was a form of transportation developed by American inventor Lawrence Edwards in the early 1960s. == Origin == The origin of this technology is Alfred Ely Beach in 1965.
Gravity-vacuum transit (GVT) was a form of transportation developed by American inventor Lawrence Edwards in the early 1960s. == Origin == The origin of this technology is Alfred Ely Beach in 1965.
Gravity-vacuum transit (GVT) was a form of transportation developed by American inventor Lawrence Edwards in the early 1960s. == Origin == The origin of this technology is Alfred Ely Beach in 1965.
Source: Wikipedia "Gravity-vacuum transit" · CC BY-SA 4.0
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