US PATENT SUBCLASS 367 / 72
.~.~.~ 3-D


Current as of: June, 1999
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367 /   HD   COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES

14  DF  SEISMIC PROSPECTING {4}
37  DF  .~ Land-reflection type {6}
68  DF  .~.~ Display systems {4}
72.~.~.~ 3-D


DEFINITION

Classification: 367/72

3-D:

(under subclass 68) Subject matter wherein the display extends or appears to extend in three perpendicular directions in space.