US PATENT SUBCLASS 126 / 105 A
.~.~ Fan in casing top
Current as of:
June, 1999
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126 /
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STOVES AND FURNACES
99 R
DF
HOT-AIR FURNACES
{24}
105 R
DF
.~ Hot-air equalizers {1}
105 A
.~.~ Fan in casing top
Unofficial Alpha Subclasses: R A
DEFINITION
Classification: 126/105
(under subclass 99) Hot air furnaces having devices for equally distributing heated air to the several apartments of a building.