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

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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.