US PATENT SUBCLASS 122 / 370
.~ Plural

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

368  DF  WATER FIREBOX {2}
370.~ Plural

DEFINITION

Classification: 122/370

(under subclass 368) Subject matter comprising miscellaneous water firebox boilers having a plurality of water fireboxes not otherwise provided for.

SEE OR SEARCH THIS CLASS, SUBCLASS:

57, 60, 95, 96, 213, 229, 372, for other types of water firebox boilers having a plurality of water fireboxes.