US PATENT SUBCLASS 313 / 12
.~ Recirculating systems

Current as of: June, 1999
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313 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES

11  DF  WITH TEMPERATURE MODIFIER {19}
12.~ Recirculating systems

DEFINITION

Classification: 313/12

(under subclass 11) Subject matter in which the temperature modifying means includes a closed path for circulating the temperature modifying means from the lamp or discharge device to a heat exchange means and then back to the lamp or discharge device to again modify the temperature of the lamp or discharge device.

SEE OR SEARCH CLASS

165, Heat Exchange,

104.11+, recirculating heat exchange system of general application.