US PATENT SUBCLASS 337 / 300
.~ Responsive to plural external conditions (e.g., temperature and humidity)

Current as of: June, 1999
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337 /   HD   ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES

298  DF  THERMALLY ACTUATED SWITCHES {7}
300.~ Responsive to plural external conditions (e.g., temperature and humidity)

DEFINITION

Classification: 337/300

(under subclass 298) Subject matter wherein the thermally responsive structure is significantly described as being responsive to plural external conditions. For example, to both temperature and humidity.

SEE OR SEARCH CLASS

236, Automatic Temperature and Humidity Regulation, appropriate subclasses especially

4, 5, 18, 19, 32, 33, 40, and 91-104 for plural condition responsive thermostatic controls.