US PATENT SUBCLASS 318 / 648
.~.~ With inertial, direction or inclination measuring instrument


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

Internet Version by PATENTEC © 1999      Terms of Use



318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

560  DF  POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) {23}
638  DF  .~ With particular "error-detecting" means {13}
648.~.~ With inertial, direction or inclination measuring instrument {1}
649  DF  .~.~.~> Stable platforms


DEFINITION

Classification: 318/648

(under subclass 638) Subject matter in which the error detecting means is an inertial, direction, or inclination measuring instrument.

SEE OR SEARCH CLASS

33, Geometrical Instruments,

340+, for geometric instruments which measure direction, inclination or inertia.

244, Aeronautics,

79, and 80 for automatic control of aircraft responsive to gyroscopes or pendulums.