“Trailer camp,” “park” or “lot” means any area or premises where space for two or more trailers is rented, held out for rent or for which free occupancy or camping for such number is permitted to trailers or users for the purpose of securing their trade, herein referred to as a “trailer camp,” but not including automobile or trailer sales lots on which unoccupied house trailers are parked for inspection and sales. (Ord. 454 § 4, 1992)