679B.24  Time limit.
  The board of arbitration and conciliation shall within twenty days from the date of their appointment, unless such time shall be extended by the judge, complete the investigation of any dispute submitted to them.
[C62, 66, 71, 73, 75, 77, 79, 81, §90.24]
86 Acts, ch 1245, §944
C87, §679B.24