Record

Ref No	DS.SWH/4/5/4/55/4
Title	Correspondence re proposed use of experimental ducted propellor
Date	4 August 1972-11 October 1976
Description	Predominant 1972-3, with one later item. File is marked as re nos. 31 and 55, but content all relates to no. 55
AccessStatus	Open
Format	1 file

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