US PATENT SUBCLASS 122 / 331
.~ Transverse horizontal drum

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

235.11  DF  WATER TUBE {52}
331.~ Transverse horizontal drum

DEFINITION

Classification: 122/331

(under subclass 235) Devices having one or more transverse horizontal drums provided with water tubes that are not otherwise provided for.

SEE OR SEARCH THIS CLASS, SUBCLASS:

255, 257, 277, 290, 297, 299, 301, 302, 303, 332, 346, 352, and 358, for water tube boilers with transverse horizontal drums.