| Description | Letters Patent, dated 5th October 1938, issued to Cannon Iron Foundries Ltd. with Leonard Sidney Porter, for 'improvements relating to cookers and stoves'; provisional specification for the same patent; patent specification for patent no. 420,739 belonging to Percival William Flavel, for improvements relating to cooking stoves; correspondence with Barker, Brettell & Duncan, Chartered Patent Agents, Birmingham. |