...authority to inquire into the management of the business of all common carriers subject to the provision* of this act and shall keep itself informed as to the manner and method in which the same i* conducU'd and shall have the right to obtain from such common carrier* full «nd complete information...

...directly or indirectly controlling or controlled by, or under direct or indirect common control with, such carriers full and complete information necessary to...and carry out the objects for which it was created. SEC. 219. [47 USC 219] ANNUAL AND OTHER REPORTS. (a) The Commission is authorized to require annual...

...directly or indirectly controlling or controlled by, or under direct or indirect common control with, such carriers full and complete information necessary to...Commission to perform the duties and carry out the objectives for which it was created. (f) Carries out the functions of the Commission under the Communications...

...shall have authority to inquire into the management of the business of all common carriers subject to the provisions of this act, and shall keep itself...carry out the objects for which it was created; and for the purposes of this act the Commission shall have power to require the attendance and testimony...

...MANAGEMENT. The Commission may inquire into the management of the business of all carriers subject to this Act, and shall keep itself informed as to the...manner and method in which the same is conducted and as to technical developments and improvements in wire and radio communication and radio transmission...