US PATENT SUBCLASS 122 / 288
.~.~ Headers at right angles

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


122 /   HD   LIQUID HEATERS AND VAPORIZERS

235.11  DF  WATER TUBE {52}
*  DD  .~ Over firebox {2}
288.~.~ Headers at right angles

DEFINITION

Classification: 122/288

(under subclass 235) Water tube boilers having water tubes located over the firebox and communicating with headers at each end at right angles with each other.

SEE OR SEARCH THIS CLASS, SUBCLASS:

284, for similar art.