US PATENT SUBCLASS 122 / *
.~.~ Superheater

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

459  DF  STEAM TREATMENT {7}
*  DD  .~ Horizontal boiler {1}
*.~.~ Superheater {2}
469  DF  .~.~.~> Rear of firebox
470  DF  .~.~.~> Waste-heat flue