ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
C23F0001340000 for etching copper or alloys thereof 1
C23F0001360000 for etching aluminium or alloys thereof 1
C23F0001380000 for etching refractory metals 1
C23F0001400000 for etching other metallic material 1
C23F0001420000 containing a dispersed water-immiscible liquid 1
C23F0001440000 Compositions for etching metallic material from a metallic material substrate of different composition 1
C23F0001460000 Regeneration of etching compositions 1
C23F0003000000 Brightening metals by chemical means 1
C23F0003020000 Light metals 1
C23F0003030000 with acidic solutions 1
C23F0003040000 Heavy metals 1
C23F0003060000 with acidic solutions 1
C23F0004000000 Processes for removing metallic material from surfaces, not provided for in group ; C23F0001000000; or C23F0003000000 1
C23F0004020000 by evaporation 1
C23F0004040000 by physical dissolution 1