US PATENT SUBCLASS 434 / 49
.~.~ Aircraft or ambient condition simulated electrically or indicated by instrument or alarm

Current as of: June, 1999
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434 /   HD   EDUCATION AND DEMONSTRATION

29  DF  VEHICLE OPERATOR INSTRUCTION OR TESTING {4}
30  DF  .~ Flight vehicle {14}
49.~.~ Aircraft or ambient condition simulated electrically or indicated by instrument or alarm {5}
50  DF  .~.~.~> Takeoff or preparation therefor
51  DF  .~.~.~> Aircraft attitude (e.g., roll, etc.)
52  DF  .~.~.~> Ice formation or aircraft weight
53  DF  .~.~.~> Pressure
54  DF  .~.~.~> Propulsion means or accessory

DEFINITION

Classification: 434/49

Aircraft or ambient condition simulated electrically or indicated by instrument or alarm:

(under subclass 30) Subject matter wherein the functioning of an aircraft or a characteristic of the environment in which an aircraft is operated is imitated by electrical apparatus or is indicated by a dial, audible warning, or other informative means.