(under subclass 73) Coating apparatus having means to contact metal work with material which chemically removes impurities from he work.
(1) Note. Where the application of flux to a base is by means of a coating device, the fluxing instrumentality, per se, is cross-referenced to the appropriate subclass below which provides for the particular type of applying device.
SEE OR SEARCH CLASS
228, Metal Fusion Bonding,
33+, for apparatus for and subclasses 223+ for method of applying flux to metallic work parts that are to be united in a fusion bonding operation.
