"House trailer" means:
A. A trailer or a semitrailer which is designed, constructed, and equipped as a dwelling place, living abode or sleeping place, either permanently or temporarily, and is equipped for use as a conveyance on streets and highways; or
B. A trailer or semitrailer whose chassis and exterior shell is designed and constructed for use as a "house trailer", as defined in subsection A of this section, but which is used instead permanently or temporarily for the advertising, sales, display or promotion of merchandise or services, or for any other commercial purpose except the transportation of property for hire or the transportation of property for distribution by a private carrier. (Ord. 43 §1(o), 1966)