(under subclass 129) Vaporizers in which steam alone is the vapor generated and having a nozzle to direct the steam in a jet, so as to concentrate the heat of the steam upon insects in their hiding places, whereby the insects are killed.
SEE OR SEARCH CLASS
128, Surgery,
203.12+, for vaporizers for medicaments.
239, Fluid Sprinkling, Spraying, and Diffusing,
128+, for fluid distributing devices of general utility and which may be disclosed for destroying vermin, and which by the action of heat or a heated fluid may tend to vaporize the fluid.
