US PATENT SUBCLASS 356 / 146
.~.~.~ Two or more lines of sight deflected

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}
144  DF  .~.~ With plural images {2}
146.~.~.~ Two or more lines of sight deflected

DEFINITION

Classification: 356/146

(under subclass 144) Subject matter wherein the lines of sight from at least two objects are each deflected in the viewing instrument.