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

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}
*.~.~ Over firebox {1}
*  DD  .~.~.~> Front and rear header {3}