Sec. 688.1. Directories to be filed

Each and every telephone corporation subject to the jurisdiction and under the supervision of this commission is hereby directed and required to file with this commission a copy of each and every directory of its subscribers and patrons which was in use by it on the first day of September, 1910, such directories to be filed on or before the first day of October, 1910. Each and every such corporation is hereby directed to file from time to time with this commission a copy of each and every such directory as it may hereafter issue or may have issued since September 1, 1910, such filing to be made immediately upon the issue of such directory.