Section 31. Application of article

The provisions of this article shall
  apply to corporations  owning,  leasing,  maintaining  or  operating  or
  organized  for the purpose of owning, leasing, maintaining or operating,
  a radio or wireless plant, equipment or system  as  a  part  of,  or  in
  conjunction with, a station or stations engaged in or designed to engage
  in  public  commercial  intercourse by wireless telegraphy or telephony,
  and also corporations for  the  generation  and  distribution  of  music
  electrically;  and  such  corporations  shall  possess the powers and be
  subject to all the duties  granted  to  or  imposed  upon  telegraph  or
  telephone  corporations  thereby except that such corporations organized
  solely for the generation and distribution of music  electrically  shall
  not have or exercise the right of condemnation.