US PATENT SUBCLASS 122 / 339
.~.~.~.~ Central magazine

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}
*  DD  .~.~ Annular lower drum {4}
338  DF  .~.~.~ Annular upper drum {2}
339.~.~.~.~ Central magazine

DEFINITION

Classification: 122/339

(under subclass 338) Devices having a centrally disposed fuel magazine.

SEE OR SEARCH THIS CLASS, SUBCLASS:

251, 320 and 344, for boilers of a similar type having a central magazine, but whose upper drum is not annular in form.