US PATENT SUBCLASS 122 / 403
.~.~.~ Feed heater

Current as of: June, 1999
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122 /   HD   LIQUID HEATERS AND VAPORIZERS

379  DF  CLEANING {9}
397  DF  .~ Trapped circuit {3}
400  DF  .~.~ Surface exit {4}
403.~.~.~ Feed heater

DEFINITION

Classification: 122/403

(under subclass 400) Devices having in combination therewith a heater for the feed water.

SEE OR SEARCH THIS CLASS, SUBCLASS:

415, for allied art without the sediment trap.