(under subclass 607) Subject matter wherein the metal workpiece is heated prior to, or after, the forming of the tube.
(1) Note. Apparatus for operating on the material or object prior to the heating may be included only if the sole purpose of such a preparatory operation is to facilitate the inductive heating.
SEE OR SEARCH THIS CLASS, SUBCLASS:
601, for inductive heating with another diverse type of heating.
656, for an inductive heating system with multiple stations of plural heating zones.
