11. There must be a margin around any drawing which must be at least—
(a)at the top and left side, 20mm;
(b)at the right side, 15mm; and
(c)at the bottom, 10mm.
12. All drawings must be numbered consecutively in a single series.
13. The drawings must begin on a new sheet of paper.
14. The pages containing the drawings must be numbered consecutively in a single series.
15. Drawings must comprise black lines and must not be shaded.
16. Drawings may include cross-hatching to illustrate the cross-sections of a thing.
17. Any scale or other reference for making measurement must be represented diagrammatically.
18. Any drawing must be produced in such manner that it would still be clear if it were reduced by linear reduction to two thirds of its original size.
19. A drawing must not be included in the description, the claims, the abstract or the request for the grant of a patent.
20. The capital letters in any typeface or font used in any drawing must be more than 3mm high.