If you use assistive technology (such as a screen reader) and need a
version of this document in a more accessible format, please email firstname.lastname@example.org.
Please tell us what format you need. It will help us if you say what assistive technology you use.
Patent decision: O/092/94 in the matter of patent application 8912373.1 in the name of Anne McManus dated 30 June 1994.