US PATENT SUBCLASS 422 / 77
.~.~.~.~ With integrating or differentiating means

Current as of: June, 1999
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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

50  DF  ANALYZER, STRUCTURED INDICATOR, OR MANIPULATIVE LABORATORY DEVICE {11}
68.1  DF  .~ Means for analyzing liquid or solid sample {11}
75  DF  .~.~ Including titrator {1}
76  DF  .~.~.~ Conductiometric type {1}
77.~.~.~.~ With integrating or differentiating means

DEFINITION

Classification: 422/77

With integrating or differentiating means:

(under subclass 76) Apparatus having differentiating or integrating means, usually to extrapolate mathematically to the desired titration end point.