US PATENT SUBCLASS 374 / 193
.~.~.~ Having specified cross section

Current as of: June, 1999
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374 /   HD   THERMAL MEASURING AND TESTING

100  DF  TEMPERATURE MEASUREMENT (E.G., THERMOMETER) {13}
187  DF  .~ Mechanical (e.g., expansion or contraction of materials) {10}
190  DF  .~.~ Indicating tube type {4}
193.~.~.~ Having specified cross section

DEFINITION

Classification: 374/193

Having specified cross-section:

(under subclass 190) Subject matter wherein the cross-section configuration of the transparent tube is particularly described.

(1) Note. This subclass includes a transparent indicating tube shaped so as to form an optical element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

191, for an indicating tube thermometer having a distinct optical element.