US PATENT SUBCLASS 244 / 200
.~.~.~ By characteristic of airfoil's skin


Current as of: June, 1999
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244 /   HD   AERONAUTICS

34 R  DF  AIRCRAFT SUSTENTATION {2}
35 R  DF  .~ Sustaining airfoils {7}
198  DF  .~.~ With lift modification {3}
200.~.~.~ By characteristic of airfoil's skin


DEFINITION

Classification: 244/200

(under subclass 198) Lift modification devices wherein the modification consists of a design feature of all or part of the surface or skin of the airfoil.