“Hotel” means every building or other structure commonly referred to as a hotel, motor hotel, motor lodge or similar name which is kept, used, maintained, advertised and held out to the public to be a place where a restaurant as defined under these Regulations is maintained and sleeping accommodations are offered for adequate pay to travelers or guests whether transient, permanent or residential, in which fifty (50) or more rooms are used for sleeping accommodations of such guests and having one or more public dining rooms with adequate and sanitary kitchen facilities, where meals are regularly served to such guests, such sleeping accommodations and dining room being conducted in the same building or in separate buildings or structures used in connection therewith that are on the same premises and are part of the hotel operation.