Sewer ventilators provided with disinfecting apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
221, for sewer gas conducted to a furnace or to a fluid fuel burner.
222+, for general disinfecting or chemical dispensing apparatus.
SEE OR SEARCH CLASS
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,
1+, for a process to disinfect, preserve, deodorize, or sterilize, and subclasses 243+ for apparatus to treat a solid article or material with a fluid chemical.
424, Drug, Bio-Affecting and Body Treating Compositions,
40+, for a composition that is usually incompletely burned or at least has a chemical reaction to project the composition into the air as a smoke, mist, or aerosol, and subclasses 76.1+ for a deodorant, disinfectant, or olfactory desensitizer composition.
