US PATENT SUBCLASS 356 / 149
.~.~.~ Gyroscope or pendulum stabilized optical element

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

138  DF  ANGLE MEASURING OR ANGULAR AXIAL ALIGNMENT {11}
140  DF  .~ Apex of angle at observing or detecting station {6}
148  DF  .~.~ Artificial reference {1}
149.~.~.~ Gyroscope or pendulum stabilized optical element

DEFINITION

Classification: 356/149

(under subclass 148) Subject matter where an optical element or reticle is stabilized by a gyroscope or pendulum.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

5+, for gyroscopes, per se.