ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
C22B0061000000 Obtaining metals not elsewhere provided for in this subclass (iron C21) 1
C22C ALLOYS (treatment of alloys C21D, C22F) 1
C22C0001000000 Non-ferrous alloys, i.e. alloys based essentially on metals other than iron 1
C22C0001000000 Making non-ferrous alloys (by electrothermic methods C22B0004000000; by electrolysis C25C) 1
C22C0001020000 by melting 1
C22C0001030000 using master alloys 1
C22C0001040000 by powder metallurgy (C22C0001080000 takes precedence);; 1
C22C0001050000 Mixtures of metal powder with non-metallic powder (C22C0001080000 takes precedence);; 1
C22C0001060000 with the use of special agents for refining or deoxidising 1
C22C0001080000 Alloys with open or closed pores 1
C22C0001100000 Alloys containing non-metals (C22C0001080000 takes precedence);; 1
C22C0003000000 Removing material from non-ferrous alloys to produce alloys of different constitution 1
C22C0005000000 Alloys based on noble metals 1
C22C0005020000 Alloys based on gold 1
C22C0005040000 Alloys based on a platinum group metal 1