(Added by Ord. No. 3118 (N.S.), effective 10-12-67; amended by Ord. No. 3584 (N.S.), effective 10-22-70; amended by Ord. No. 4573 (N.S.), effective 10-23-75; amended by Ord. No. 5553 (N.S.), effective 8-2-79; amended by Ord. No. 5586 (N.S.), effective 9-20-79; repealed by Ord. No. 6632 (N.S.), effective 9-1-83)