US PATENT SUBCLASS 600 / 475
.~.~.~ With comparison means (e.g., ratio of or comparison to a standard)

Current as of: June, 1999
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600 /   HD   SURGERY

300  DF  DIAGNOSTIC TESTING {38}
407  DF  .~ Detecting nuclear, electromagnetic, or ultrasonic radiation {11}
473  DF  .~.~ Infrared radiation {2}
475.~.~.~ With comparison means (e.g., ratio of or comparison to a standard)

DEFINITION

Classification: 600/475

With comparison means (e.g., ratio of or comparison to a standard):

(under subclass 473) Subject matter including a device to contrast a measured parameter to a known parameter.