Click through Fig. 9 image to obtain the full patent of the
Multipurpose Airborne Vehicle
Patent number: US 5595358
Filing date: Jan 29, 1996      (But notice the priority data in Russian Federation)
Issue date: Jan 21, 1997

German V. Demidov,    Eduard S. Osipov

Notice the priority date in Russian Federation of Dec. 16, 1992.