US PATENT SUBCLASS 126 / 507
.~ With filter

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

500  DF  FIREPLACES OR ACCESSORIES {19}
507.~ With filter

DEFINITION

Classification: 126/507

With filter:

(under subclass 500) Subject matter including means to separate solid particles from a fluid entering or leaving the vicinity of the flame.