US PATENT SUBCLASS 313 / 40-- .~.~ Radiating type surface

US PATENT SUBCLASS 313 / 40
.~.~ Radiating type surface

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

11	DF	WITH TEMPERATURE MODIFIER {19}
39	DF	.~ For electrode within an envelope {1}
40		.~.~ Radiating type surface {1}
41	DF	.~.~.~> Material, roughened surface

DEFINITION

Classification: 313/40

(under subclass 39) Devices in which the temperature modifier comprises a radiating surface adapted to transmit or receive radiant heat.

SEE OR SEARCH THIS CLASS, SUBCLASS:

45, for other devices under subclass 11 in which the temperature modifying means is a radiating surface adapted to transmit or receive radiant heat.

SEE OR SEARCH CLASS

165, Heat Exchange,

133, for a heat exchanger with a coated, roughened or polished surface, and subclasses 177+ for a tubular structure with heat transfer means.