US PATENT SUBCLASS 122 / 413
.~ Ash pan

Current as of: June, 1999
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122 /   HD   LIQUID HEATERS AND VAPORIZERS

412  DF  FEED HEATERS {17}
413.~ Ash pan

DEFINITION

Classification: 122/413

(under subclass 412) Feed heaters that are either located in the ash pan or ash box or form part of the structure thereof.