US PATENT SUBCLASS 122 / 398
.~.~ Feeding water

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

379  DF  CLEANING {9}
397  DF  .~ Trapped circuit {3}
398.~.~ Feeding water

DEFINITION

Classification: 122/398

(under subclass 397) Devices provided with means for introducing feed water into the circulating conduit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

403, for a feed water means with a heater.

414, for similar arrangement of conduit with feed water introduction without the sediment trap.