id author title date pages extension mime words sentences flesch summary cache txt 22685 United States. Patent Office The Classification of Patents .txt text/plain 20415 1104 56 to a patent office classification of the useful arts. division necessary in a patent office classification, and (2) because of combination._--In any main class or group of the useful arts there are in any class so arranged, as no patented invention having the cross-search notes or arrangement of subclasses with appropriate titles A "cross-reference" is a copy of a patent placed in a subclass other subclass for means having combined functions of rolling and indicate other classes or subclasses in which the subject-matter of the unclaimed disclosures are classified in different classes or subclasses serve a useful purpose, it is best to classify the patent in the class Example: A patent having a claim for a process of making (34) Where a patent claims a process of making a composition of matter, after the number (1) the class and subclass in which it is classified; ./cache/22685.txt ./txt/22685.txt