539.5  Priority.
  Assignments of wages shall have priority and precedence in the order in which notice in writing of such assignments shall be given to the employer, and not otherwise.
[S13, §3047; C24, 27, 31, 35, 39, §9455; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §539.5]