by endowing the walls of conduits with zones of different degrees of conduction of heat

Full Title

Arrangements for modifying heat transfer, e.g. increasing, decreasing > by endowing the walls of conduits with zones of different degrees of conduction of heat

Classification Context

Section:

MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

Class:

HEAT EXCHANGE IN GENERAL

Subclass:

DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION