US PATENT SUBCLASS 126 / 389
.~.~ With vent passage


Current as of: June, 1999
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126 /   HD   STOVES AND FURNACES

344  DF  WATER HEATERS {7}
373  DF  .~ Vessels {10}
389.~.~ With vent passage


DEFINITION

Classification: 126/389

(under subclass 373) Devices provided with means establishing communication between the interior of the vessel, above the material therein, and an exterior remote point. The purpose of the communication means may be to direct fluid or vapor either to or from the vessel and is usually arranged to terminate exteriorly of the bottom of the vessel adjacent a heating surface or for communication with a stove hole.

SEE OR SEARCH THIS CLASS, SUBCLASS:

275, for ovens which have bottom openings.

299+, for similar devices in combination with a stove.