Industrial Property Regulations, 2002 numbers centred at the top of the sheets but not in the top margin — (a) the request; (b) the description, claims and abstract; and (c) the drawings. (13) Every fifth line of the description and the claims shall be numbered with the number appearing to the left of the line but not in the margin. (14) All parts of the application, other than the drawings and the request, shall be typed or printed rather than hand-written and the following apply to the appearance of the text — (a) the text shall be dark and indelible; (b) the line spacing of the text shall be at least one and one half; and (c) the capital letters shall be at least .20 centimetres high. (15) All parts of the application must be prepared so that they are legible when they are photocopied or otherwise reproduced. (16) Notwithstanding paragraph (14), graphic symbols and characters, and chemical and mathematical formulae may be hand-written but must be dark and indelible. (17) The request may be hand-written, typed or printed but the text must be dark and indelible. (18) All parts of the application shall be reasonably free of over-writings, insertions between lines, deletions or other alterations. (19) All terms, signs and symbols used in the application shall be used consistently throughout 12