If you use assistive technology (such as a screen reader) and need a
version of this document in a more accessible format, please email email@example.com.
Please tell us what format you need. It will help us if you say what assistive technology you use.
Patent decision O/067/95 in the matter of applications by David Johnson Burns for the restoration of patents nos 2227224 and 2227469 dated 5 April 1995.