US PATENT SUBCLASS 600 / 314
.~.~.~ Foreign substance

Current as of: June, 1999
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600 /   HD   SURGERY

300  DF  DIAGNOSTIC TESTING {38}
309  DF  .~ Measuring or detecting nonradioactive constituent of body liquid by means placed against or in body throughout test {8}
310  DF  .~.~ Infrared, visible light, or ultraviolet radiation directed on or through body or constituent released therefrom {9}
314.~.~.~ Foreign substance

DEFINITION

Classification: 600/314

Foreign substance:

(under subclass 310) Subject matter wherein the light is passed through a portion of a body to blood carried through that portion to detect the alcohol, acetone, narcotic, or various other products carried in the blood.