Moving walkways are an attractive proposition for cities that aro suffering strangulation at the wheels of the motor car. Not a new idea, but citizens of boston, mass, may be guinea-pigs for the first operational
Effortless walking
Engineering, London ; 210 , 5465 ; 820-821
1971
2 Seiten, 4 Bilder
Aufsatz (Zeitschrift)
Deutsch
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