US PATENT SUBCLASS 33 / 707
.~.~ Optical

Current as of: June, 1999
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33 /   HD   GEOMETRICAL INSTRUMENTS

700  DF  DISTANCE MEASURING {13}
706  DF  .~ Scale reading position sensor (e.g., grid counting) {2}
707.~.~ Optical

DEFINITION

Classification: 33/707

Optical:

(under subclass 706) Subject matter wherein the scanning element responds to light pulses.