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/114/91 in the matter of Patent application no 8728023 in the name of Sharp Kabushiki Kaisha dated 11 September 1991.