US PATENT SUBCLASS 73 / 1.75
.~ Angle, direction, or inclination


Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

1.01  DF  INSTRUMENT PROVING OR CALIBRATING {13}
1.75.~ Angle, direction, or inclination {3}
1.76  DF  .~.~> Compass
1.77  DF  .~.~> Gyroscope
1.78  DF  .~.~> Aircraft, inertial navigation, or attitude


DEFINITION

Classification: 73/1.75

Angle, direction, or inclination:

(under subclass 1.01) Subject matter wherein either (a) the apparatus for proving or calibrating the device or (b) the device being proven or calibrated (1) measures the figure formed by two lines diverging from a common point (i.e., angle), (2) a position to which motion or another position is referred (i.e., direction), or (3) a deviation from a horizontal or vertical reference point (i.e., inclination).

SEE OR SEARCH CLASS

33, Geometrical Instruments, appropriate subclasses for instruments for measuring an angle, a direction, or an inclination.