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  • [[File:1887 - Wulff - US363037 - image.png|thumb|391px]] ...etc."—as aerial beasts of burden. "An air-balloon with living propellers". Wulff envisions the birds attached, in corsets, to a movable element, thus allowi
    2 KB (214 words) - 20:28, 13 January 2021
  • |Inventors=Charles Richard Édouard Wulff |Applicant person=Charles Richard Édouard Wulff
    1 KB (206 words) - 23:22, 27 February 2021
  • *[[Charles McDermott]]: Improved Nav. Apparatus - November 12, 1872 - [[Patent US-1872 *[[Thomas|T. Moy]] and [[Richard Edmund Shill|E. Shill]]: Navigation Apparatus, November 26, 1872 - [[Patent
    12 KB (1,518 words) - 23:27, 3 February 2024