US PATENT SUBCLASS 126 / 362
.~.~ Circulation


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

344  DF  WATER HEATERS {7}
361  DF  .~ Stand boilers {2}
362.~.~ Circulation


DEFINITION

Classification: 126/362

(under subclass 361) Devices where the improvements reside in specific water-circulating means.