| Description | Letters Patent, dated 24th January 1934, issued to Cannon Iron Foundries Ltd. of Bilston, Staffordshire, with Richard Talbot Clayton and Wilfred Eric Benton, both of the same Company for 'improvements in doors for ovens'; copy of specification for patent no. 427,992 belonging to Radiation Ltd. and another, for 'improvements relating to oven doors'; correspondence with Barker, Brettell & Duncan, British and Foreign Patents, Trade Marks and Designs, Chartered Patent Agents, Birmingham. |