US PATENT SUBCLASS 122 / *
.~.~.~.~ Header

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}
253  DF  .~ Cross {3}
*  DD  .~.~ Over firebox {2}
*  DD  .~.~.~ Transverse {1}
*.~.~.~.~ Header {1}
256  DF  .~.~.~.~.~> Drum