US PATENT SUBCLASS 29 / 902
FILTER MAKING
Current as of: June, 1999
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DEFINITION
Classification: 29/902
FILTER MAKING:
(under the class definition) Cross-reference art collections of documents relating to a method of manufacturing a perforated or porous metal article which separates particles from materials flowing through the articles.
SEE OR SEARCH THIS CLASS, SUBCLASS:
896.62, for a method of making a multiperforated metal filter.
SEE OR SEARCH CLASS
264, Plastic and Nonmetallic Article Shaping or Treating: Processes,
41+, for a method of pore forming in situ a nonmetallic article or an article formed from particulate material, and subclasses 109+ for a method of forming articles by uniting randomly associated particles.
419, Powder Metallurgy Processes, for a method of making an article by powder metallurgy techniques.
