Catalogue description Invention of helicopter by Mr. L. Brennan, Air Ministry [includes pamphlet d/d June 1917...

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Details of MUN 8/26
Reference: MUN 8/26
Description:

Invention of helicopter by Mr. L. Brennan, Air Ministry [includes pamphlet d/d June 1917 prepared for Advisory Committee for Aeronautics entitled Some Experiments on Helicopters - by A. Fage and H. E. Collins]
Date: 1918 Sept. 12 - 1923 Sept. 28
Held by: The National Archives, Kew
Former reference in its original department: A.P.T.53637 A.P.T.53637/1
Legal status: Public Record(s)
Closure status: Open Document, Open Description

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