.~ Surrounding radially spaced duct with axially spaced supports for internal duct
DEFINITION
Classification: 138/113
(under subclass 111) Device wherein an inner duct is surrounded by a coextensive duct and radially spaced therefrom by a plurality of axially spaced support members.
SEE OR SEARCH THIS CLASS, SUBCLASS:
108, for a duct having means therein to support an element which, per se, is subject matter for other classification.
