US PATENT SUBCLASS 434 / 53
.~.~.~ Pressure


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  DF  .~.~ Aircraft or ambient condition simulated electrically or indicated by instrument or alarm {5}
53.~.~.~ Pressure


DEFINITION

Classification: 434/53

Pressure:

(under subclass 49) Subject matter including a means for showing force per unit of area in some component of an aircraft.