(under subclass 200) Apparatus in which the means for immovably sustaining the fluid supply is an essential part of a building structure.
(1) Note. The relation between Classes 239 and 47, subclasses 17+ (greenhouse) and subclass 19 (hotbeds) is as follows: if any specific detail of the greenhouse or hotbed is claimed, such as for example, the benches for the plants, or a particular pattern or curvature of the soil, together with the nozzle or supply line to spray in a particular manner between or on or in other specific relations to the benches or the soil, the patent is classified in Class 47. If the greenhouse or hotbed is claimed by name only, then the patent is classified in Class 239.
SEE OR SEARCH CLASS
137, Fluid Handling,
357+, for static constructional installation having to do with buildings and fluid handling.
