Revision history of "Patent GB-1918-131068"

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  • curprev 05:33, 25 April 2024Econterms talk contribs 1,354 bytes +1,354 Created page with "* "Stopping way. An aircraft elevator is made in two portions 1, 2 which may be opened out to act as an air brake. This may be effected by means of a separate lever ..." * Tec..."