Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 164
DC en t?co ai--l- (.ItOII)Q-0<< uJo£ uJuJ2-CD-Jq:uJ id o CC CDli- Page 11 Section 5-A Multiplex System 263-C |- CARR/ASE ffl … Fig. 15 LOCK NUT CENTERING PAWL,LOCKING CAM
Telegraph
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.