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Reference Number	D8/L3/113
Title	Papers re: Patent Application No.s 4838/40; 4839/40; and 5788/41 - Control of Flue Ventilation in Gas Fires or Radiators; Gas Fires resembling Coal Fires
Description	Correspondence with Barker, Brettell & Duncan, Chartered Patent Agents, Birmingham, re: various patent applications.
Date	Mar 1940-Nov 1941
AccessStatus	Open
Level	File

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