US PATENT SUBCLASS 122 / 336
.~.~ Offset firebox

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

235.11  DF  WATER TUBE {52}
332  DF  .~ Vertical {10}
336.~.~ Offset firebox {1}
337  DF  .~.~.~> Elevated

DEFINITION

Classification: 122/336

(under subclass 332) Devices having an offset firebox exterior of the main boiler structure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

175, for other types.

209, for sectional boilers with offset fireboxes.

213, for sectional boilers with plural fireboxes, one of which may be offset.

221, 238 and 352, for other offset fireboxes.