US PATENT SUBCLASS 122 / *
.~.~.~ Water firebox


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

44.1  DF  FIRE TUBE {11}
51  DF  .~ Horizontal {22}
75  DF  .~.~ Return fire tube {2}
*.~.~.~ Water firebox {1}
78  DF  .~.~.~.~> Flue