(under the class definition) Apparatus in which two or more lengths or loops of tubing or two or more tubular elements are assembled alongside each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
117, for a trickler in which liquid flows across parallel horizontal pipes.
130, for facing conduits forming a thermosyphonic flue.
144+, for distinct conduit assemblies that are line connected.
150, for a radiator of the core type made up of serially connected tube sections.
151, for a radiator of the core type made up of side by side tubes traversing a group of fins. 152+, for a radiator of the core type made up of side by side tubes spaced by deformed passage forming sheets.
157+, for a tube assembly in a casing or tank.
171+, for a panel or wall structure made up of side by side tube elements.
