The original pneumatic tubes still shuttle call slips to the stacks.
Another invention is a system of pneumatic tubes, which George also uses for transportation.
In its telegram days, the building was the center for a system of pneumatic tubes running under the city's streets.
These pellets, as you know, are distributed by pneumatic tube to each house.
The telegraph operating room was connected to the ground floor by pneumatic tubes.
A century ago, people who looked ahead to 2000 had an exaggerated faith in the promise of pneumatic tubes.
The pneumatic tubes were introduced by the post office to deliver mail in large urban areas.
That would mean the end of the system of pneumatic tubes.
At 12:19 the system showed that the blood had been received in a lab upstairs by pneumatic tube.
"This used to be the entrance to the pneumatic tube."
