US PATENT SUBCLASS 122 / 230
.~.~ Two-section

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

209.1  DF  SECTIONAL {9}
*  DD  .~ Vertical sections {4}
230.~.~ Two-section

DEFINITION

Classification: 122/230

(under subclass 209) Sectional boilers consisting of only two vertical sections.