US PATENT SUBCLASS 110 / 309
.~.~ And flow modifying means

Current as of: June, 1999
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110 /   HD   FURNACES

297  DF  INCLUDING NONCOMBUSTIBLE FLUID SUPPLY MEANS {3}
301  DF  .~ Having treatment means {2}
309.~.~ And flow modifying means {2}
310  DF  .~.~.~> Deflector {1}
313  DF  .~.~.~> Feed nozzle

DEFINITION

Classification: 110/309

And flow modifying means:

(under subclass 301) Apparatus further provided with means to modify the course of the fluid through the combustion chamber.