US PATENT SUBCLASS 122 / *
.~.~ Transverse drum


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  .~ Water tube boiler {7}
*.~.~ Transverse drum {1}
478  DF  .~.~.~> Superheater