Notes on the use of PD 9002 You are strongly recommended to read all the Explanatory Notes contained in the preliminary pages of this document. 1.1 Issue of PD 9002 PD9002 was historically issued twice per year. However, it was felt that it was unreasonable to charge for the register of ...
A reading material with hidden explanatory notes, in which a text is composed with word symbols of a certain kind of language and is provided with corresponding explanatory notes, word symbols or coding marks, at a place corresponding to the text, wherein the said notes are printed with ...