| Description | Letters Patent No. 85003, dated 8th September 1941, issued to Cannon Iron Foundries Ltd. by the Patent Office, New Zealand for 'burners and hot plates for gas fired cooking apparatus; Letters Patent No. 85342, dated 23rd December 1941, issued to Cannon Iron Foundries Ltd. for 'the heating of ovens and hot chambers of gas-heated cooking apparatus'; correspondence with Barker, Brettell & Duncan, Chartered Patent Agents, Birmingham. |