US PATENT SUBCLASS 701 / 9
.~.~.~.~ Warning signal or alarm

Current as of: June, 1999
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701 /   HD   DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION

1  DF  VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION {19}
3  DF  .~ Aeronautical vehicle {4}
4  DF  .~.~ Altitude or attitude control or indication {6}
8  DF  .~.~.~ Threshold or reference value {1}
9.~.~.~.~ Warning signal or alarm

DEFINITION

Classification: 701/9

Warning signal or alarm:

(under subclass 8) Altitude or attitude control or indication further comprising a means to alert the aeronautical vehicle operator of a condition relative to the predetermined or operator determined altitude or attitude setting.