US PATENT SUBCLASS 122 / 19
.~.~.~ Fluid fuel

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

13.1  DF  STAND BOILER {6}
*  DD  .~ Water tube {2}
*  DD  .~.~ Casing {1}
19.~.~.~ Fluid fuel

DEFINITION

Classification: 122/19

(under subclass 13) Stand boilers provided with water tubes and surrounded by a casing and heated by a fluid fuel burner.