...have jurisdiction to issue to such person au order requiring such person to appear before the board, there to produce evidence if so ordered, or there to give testimony touching the matter in question; and any failure to obey such order of the court may be punished by...

...such person an order requiring sncli persmi to appear before the Board, its member, agent, or agency, there to produce evidence if so ordered, or there to give testimony touching the matter under investigation or in question: and any failure to obey such order of the court...

...Issuing the subpena, issue an order requiring such person so guilty to appear before the individual and at the place specified in the subpena, whether within...testimony concerning the matter under investigation or in issue ; and any failure to obey such order of the court may be punished by said court as a contempt...

...issuing the subpena, issue an order requiring such person so guilty to appear before the individual and at the place specified in the subpena, whether within...testimony concerning the matter under investigation or in issue ; and any failure to obey such order of the court may be punished by said court as a contempt...

...such person an order requiring such person to appear before the Board, its member, agent, or agency, there to produce evidence if so ordered, or there to give testimony touching the matter under investigation or in question; and any failure to obey such order of the court...

...person an order requiring such person to appear before the Commission, its member, agent, or agency, there to produce evidence if so ordered, or there to give testimony touching the matter under investigation or in question; and any failure to obey such order of the court...

...Investigation or proceeding is being carried on in the District of Columbia, in requiring the attendance and testimony of witnesses and the production of evidence....investigation or in question; and any failure to obey such order of the court muy be punished by said court as a contempt thereof. (c) No person shall be...

...person an order requiring such person to appear before the Commission, its member, agent, or agency, there to produce evidence if so ordered, or there to give testimony relating to the investigation, proceeding, or hearing ; any failure to obey such order of the court...

...person an order requiring such person to appear before the commission, its member, agent, or agency, there to produce evidence if so ordered, or there to give testimony touching the matter under investigation or in question ; and any failure to obey such order of the...

...person an order requiring such person to appear before the Commission, its member, agent, or agency, there to produce evidence if so ordered, or there to give testimony relating to the investigation, proceeding, or hearing; any failure to obey such order of the court...