[United States?] : [publisher not identified] · leaf 10
A TYPICAL LAMSON PNEUMATIC CASH The largest pneumatic transmission plant for purposes of factory intercommunication is now being installed in The General Electric Co.’s works of Schenectady, N. Y. Over four miles of 4 1 -7!' tubes will be used. Of course, the best known application of this system…
Postal service -- United States · Pneumatic-tube transportation
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
