Vacuum glider Alpha with three-part structure - which is determined by quadrant, its circumscribed circle, rectangular, isosceles triangle, and isosceles triangle
DE4300601A1
Vacuum burner for vacuum slider as drive system - generates super heated high pressure gas swirl to create vortex causing slider to move
DE4301970A1
Vacuum burner for vacuum slider - has rotating core of three conical-shaped nozzles having long compact inner limbs and base of truncated cone-shaped nozzle casing with truncated cone-shaped casing and round cover
DE2637806A1
Football boots with shaped toe cap for improved shooting - has concave indentation with burrs matching outline of football
