The license fees imposed in this article are cumulative and the imposition of any one fee does not preclude the imposition of other fees upon any one individual or entity.  The fees imposed by this article are imposed for engaging in certain trades or activities, or for the use or possession of certain devices.  The pursuit of a particular trade or activity, or the ownership or use of a particular device, shall not excuse a person or entity from the requirement for a license and payment of a license fee for each such activity or device for which, if engaged in or possessed singly, a license requirement and license fee would be imposed.