(1) In proceedings before the European Patent Office, any notification to be made shall take the form either of the original document, a copy thereof certified by, or bearing the seal of, the European Patent Office or a computer print-out bearing such seal. Copies of documents emanating from the parties themselves shall not require such certification.
(2) Notification shall be made:
(a) by post in accordance with Rule 78;
(b) by delivery on the premises of the European Patent Office in accordance with Rule 79;
(c) by public notice in accordance with Rule 80, or
(d) by such technical means of communication as determined by the President of the European Patent Office and under the conditions laid down by him governing their use.
(3) Notification through the central industrial property office of a Contracting State shall be made in accordance with the provisions applicable to the said office in national proceedings.