US PATENT SUBCLASS 378 / 164
.~.~ Coordinate grid

Current as of: June, 1999
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378 /   HD   X-RAY OR GAMMA RAY SYSTEMS OR DEVICES

162  DF  AUXILIARY DATA ACQUISITION OR RECORDING {2}
163  DF  .~ Distance or dimension marker {1}
164.~.~ Coordinate grid

DEFINITION

Classification: 378/164

Coordinate grid:

(under subclass 163) Subject matter wherein the means comprises a coordinate grid which is at least partly opaque to X-rays.