US PATENT SUBCLASS 122 / *
.~ Transverse


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}
*.~ Transverse {3}
110  DF  .~.~> Horizontal boiler
111  DF  .~.~> Vertical boiler {1}
113  DF  .~.~> Water tube