Cabin trailer shall mean a trailer or semitrailer which is designed, constructed, and equipped as a dwelling place, living abode, or sleeping place, whether used for such purposes or instead permanently or temporarily for the advertising, sale, display, or promotion of merchandise or services or for any other commercial purpose except transportation of property for hire or transportation of property for distribution by a private carrier. Cabin trailer shall not mean a trailer or semitrailer which is permanently attached to real estate. There shall be three classes of cabin trailers:
Neb. Rev. Stat. §§ 60-614