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 in the matter of an application under section 72 by Robert William Hewitt for revocation of patent no. 2265358 in the name of Patrick McCann dated 16 July 1997.