9.2 Categories of documents (X, Y, P, A, D, etc.)
9.2.5 Documents relating to the theory or principle underlying the invention
Section B‑X, 9.2.5 in the Guidelines for Examination in the EPO applies mutatis mutandis.
Section B‑X, 9.2.5 in the Guidelines for Examination in the EPO applies mutatis mutandis.