ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
C22B0007040000 Working-up slag 1
C22B0009000000 General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals 1
C22B0009020000 Refining by liquating, filtering, centrifuging, distilling or supersonic wave action 1
C22B0009040000 Refining by applying a vacuum 1
C22B0009050000 Refining by treating with gases, e.g. gas flushing 1
C22B0009100000 with refining or fluxing agents; Use of materials therefor (C22B0009180000 takes precedence);; 1
C22B0009140000 Refining in the solid state 1
C22B0009160000 Remelting metals (liquating C22B0009020000) 1
C22B0009180000 Electroslag remelting 1
C22B0009187000 Apparatus therefor, e.g. furnaces 1
C22B0009193000 Moulds, bottom plates or starter plates 1
C22B0009200000 Arc remelting 1
C22B0009210000 Apparatus therefor 1
C22B0009220000 with heating by wave energy or particle radiation 1
C22B0011000000 Obtaining noble metals 1