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Reference Number	D8/L4/21
Title	Papers re: Brazilian Patent No. 31,651 - Improvements in Gas Ovens
Description	Correspondence with Barker, Brettell & Duncan, Chartered Patent Agents, Birmingham re: Cannon's Brazilian patent No. 31,651 for gas ovens.
Date	May 1943-Mar 1945
AccessStatus	Open
Level	Item

Record