When an optometrist disposes of his established practice to a successor, the successor shall, within a reasonable time, remove from all signs, cards, stationery, and directories connected with the practice he has acquired or is acquiring, all words or phrases such as "successor to," "associate of," or words of like import. Under no circumstances may the use of these signs, cards, stationery or advertising continue for more than two years.

(In effect before 7/28/59; am 9/10/65, Register 21; am 4/24/71, Register 37)