US PATENT SUBCLASS 244 / 90 A
.~.~.~ Roll control spoilers

Current as of: June, 1999
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244 /   HD   AERONAUTICS

75 R  DF  AIRCRAFT CONTROL {8}
87  DF  .~ Rudders and empennage {3}
90 R  DF  .~.~ Ailerons and other roll control devices {2}
90 A.~.~.~ Roll control spoilers

Unofficial Alpha Subclasses: R A B

DEFINITION

Classification: 244/90

(under subclass 89) Devices for controlling aircraft about their horizontal fore-and-aft axes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

201+, for variable lift devices arranged to act also as roll control devices.