Service facilities and equipment

作者: Bullock K G , Mcclellan Ralph E , Mcclure Malcolm C , Stewart George M

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参考文章(8)
Clarence D Ellithorpe, Drive-in service apparatus ,(1956)
John T Needham, Pneumatic dispatch tube apparatus ,(1930)
Chester S Jennings, Pneumatic dispatch system ,(1930)
August Koenig, Safety-valve for pneumatic tubes. ,(1902)
Herz Alfred, PNEUMATIC-TUBE SYSTEM. ,(1913)
Franklin H Wolever, Pneumatic-despatch-tube system. ,(1908)