US PATENT SUBCLASS 261 / 131
.~ Automatic control of heat supply or heat effect

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


261 /   HD   GAS AND LIQUID CONTACT APPARATUS

127  DF  WITH EXTERNAL SUPPLY OR REMOVAL OF HEAT {14}
131.~ Automatic control of heat supply or heat effect

DEFINITION

Classification: 261/131

(under subclass 127) Apparatus wherein a control is exerted or a heat supply or removal means or on a condition directly resulting from the operation of such means in response to a means sensing an operating condition or a change of operating condition.