US PATENT SUBCLASS 126 / 79
.~.~ Smoke and gas returning

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

*  DD  STOVES {3}
58  DF  .~ Heating {18}
79.~.~ Smoke and gas returning

DEFINITION

Classification: 126/79

(under subclass 58) Heating-stoves that are provided with means for returning the gases or products of combustion from the smoke-outlet to the combustion-chamber of the stove.

SEE OR SEARCH CLASS

110, Furnaces, particularly

203+, for furnaces having similar means.

362, Illumination,

171+, for lanterns in which a portion of the products of combustion is led back to the flame.