| Description | Letters Patent No. 444,954, dated 27th August 1934, issued to Cannon Iron Foundries Ltd. with Richard Talbot Clayton and Wilfred Eric Benton, for 'improvements in portable gas fires and heaters'; provisional specification and patent specification for the same patent; correspondence with Barker, Brettell & Duncan, British and Foreign Patents, Trade Marks and Designs, Chartered Patent Agents, Birmingham. |