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Class Information
Number: 244/23R
Name: Aeronautics > Aircraft, heavier-than-air > Fluid sustained
Description:










Sub-classes under this class:

Class Number Class Name Patents
244/23C Circular configuration 171
244/23B Dual propulsion means, horizontal and vertical 88
244/23A Lifting thrusters 68
244/23D Thrust diverters 121


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
4046215 Vessel mobile on air cushion or the like Sep. 6, 1977
3997131 Rotor means for an aircraft Dec. 14, 1976
3990658 Boundary layer control for air cushion landing systems Nov. 9, 1976

1 2










 
 
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