Revision history of "Patent GB-1889-19282"

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  • curprev 10:10, 9 June 2021‎ LTA talk contribs‎ 1,161 bytes +1,161‎ Created page with ""Feathering vane wheel" with epicyclic gearing, applicable to aerial navigation as well as other purposes. The applicant name in the Abridgments is "Count H. Avet". Based on..."
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