US PATENT SUBCLASS 122 / *
.~.~.~ Front and rear header


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

235.11  DF  WATER TUBE {52}
*  DD  .~ Rearwardly declined {3}
*  DD  .~.~ Over firebox {1}
*.~.~.~ Front and rear header {3}
298  DF  .~.~.~.~> Horizontal-longitudinal drum
299  DF  .~.~.~.~> Transverse drum
300  DF  .~.~.~.~> Tubes beyond side wall