US PATENT SUBCLASS 122 / 320
.~.~.~ Central magazine

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

235.11  DF  WATER TUBE {52}
305  DF  .~ Spur {8}
318  DF  .~.~ Vertical {2}
320.~.~.~ Central magazine

DEFINITION

Classification: 122/320

(under subclass 318) Devices having a centrally disposed fuel magazine.

SEE OR SEARCH THIS CLASS, SUBCLASS:

168, for vertical flue boilers with internal spur tubes.

339, and 344, for other types of water tube boilers with vertical tubes and a central magazine.