Product or Service Advertising Signs. Devices, structures or objects used to advertise a product, service, commodity, or activity available or occurring on the same premises as the sign(s). Such signs shall include but need not be limited to placards, boards, or other devices which are mounted, hung or painted on the inside of windows and faced outward, or are placed outside of a business, either on the building itself or on the same lot as the business, which advertise or are intended to advertise the variety, type, or pricing of available products or services. Flags, pennants, and banners which advertise specific products or services shall also be considered product or service advertising signs for the purposes of this chapter.