US PATENT SUBCLASS 122 / 272
.~.~.~ Central magazine

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

235.11  DF  WATER TUBE {52}
266  DF  .~ Internal fire tube {5}
271  DF  .~.~ Vertical {1}
272.~.~.~ Central magazine

DEFINITION

Classification: 122/272

(under subclass 271) Devices having a centrally disposed fuel magazine.

SEE OR SEARCH THIS CLASS, SUBCLASS:

339, for vertical water tube boilers provided with a centrally disposed fuel magazine when the water tubes do not contain fire tubes.