(3) Despite subclause (1), if a particular sponsor is the sponsor of 2 or more medical devices, it is only necessary to enter information in respect of each kind of device (instead of in respect of each device) for which the sponsor is responsible, if each of the devices of the same kind—
(4) For the purposes of subclause (2), a unique product identifier for a medical device is a trade name or brand name, combined if the Director-General so requires, with a form of product identification.