US PATENT SUBCLASS 122 / 344
.~.~.~.~ 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}
343  DF  .~.~.~ Upper drum {1}
344.~.~.~.~ Central magazine

DEFINITION

Classification: 122/344

(under subclass 343) Devices, having a central magazine.

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339, for similar boilers in which the upper drum is annular.