US PATENT SUBCLASS 122 / 316
.~.~.~ Horizontal

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

235.11  DF  WATER TUBE {52}
305  DF  .~ Spur {8}
*  DD  .~.~ Over firebox {3}
316.~.~.~ Horizontal

DEFINITION

Classification: 122/316

(under subclass 305) Devices in which the spur water tubes are horizontally disposed over the firebox.

SEE OR SEARCH THIS CLASS, SUBCLASS:

279, for horizontal loop tubes over the firebox.