037 — Class 37 includes mainly services rendered by contractors or subcontractors in the construction or making of permanent buildings, as well as services rendered by persons or organizations engaged in the restoration of objects to their original condition or in their preservation without altering their physical or chemical properties.

039 — Class 39 includes mainly services for the transport of people, animals or goods from one place to another (by rail, road, water, air or pipeline) and services necessarily connected with such transport, as well as services relating to the storing of goods in a warehouse or other building for their preservation or guarding.

041 — Class 41 covers mainly services rendered by persons or institutions in the development of the mental faculties of persons or animals, as well as services intended to entertain or to engage the attention.