US PATENT SUBCLASS 454 / 12
.~.~ With means for mounting on brick-type chimney

Current as of: June, 1999
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454 /   HD   VENTILATION

1  DF  CHIMNEY OR STACK {6}
3  DF  .~ Chimneytop or stacktop structure (e.g., cowl) {12}
12.~.~ With means for mounting on brick-type chimney {1}
13  DF  .~.~.~> Chimneytop structure extends within chimney {1}

DEFINITION

Classification: 454/12

With means for mounting on brick-type chimney:

(under subclass 3) Subject matter comprising means uniting the structure to an uppermost end of a brick or ceramic vertical conduit section (i.e., chimney).