proper officemeans the district land registry designated as the proper office by article 2(2) of the Land Registration (District Registries) Order 1989;
the 1990 Rulesmeans the Land Registration Rules 1990;
the principal actmeans the Land Registration Act 1925;
the principal rulesmeans the Land Registration Rules 1925;
title planmeans the filed plan or General Map referred to in a register of a registered title.