US PATENT SUBCLASS 126 / 102
.~ Circular radiating drum

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

99 R  DF  HOT-AIR FURNACES {24}
102.~ Circular radiating drum

DEFINITION

Classification: 126/102

(under subclass 99) Hot air furnaces in which the radiating drum encircles the fire-pot or combustion-chamber.