US PATENT SUBCLASS 110 / 127
.~.~ Ejector

Current as of: June, 1999
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110 /   HD   FURNACES

119  DF  SPARK ARRESTERS {3}
122  DF  .~ Smokebox {7}
127.~.~ Ejector

DEFINITION

Classification: 110/127

(under subclass 122) Devices for ejecting the sparks from the smokebox by a jet of steam, air, water, fan, or other means.