In T 211/05 the board held that a director's signature purporting to be on behalf of the second examiner was invalid because nothing in the EPC 1973 authorised a director to sign on behalf of a member of an examining division to which he did not himself belong.
Source: http://www.epo.org/law-practice/legal-texts/html/caselaw/2019/e/clr_iii_k_3_3_2_b.htm
Date retrieved: 17 May 2021