ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
C01B0017880000 Concentration of sulfuric acid 1
C01B0017900000 Separation; Purification 1
C01B0017920000 Recovery from acid tar or the like 1
C01B0017940000 Recovery from nitration acids 1
C01B0017960000 Methods for the preparation of sulfates in general (particular individual sulfates, see the relevant groups of subclasses C01B-C01G, according to the cation);; 1
C01B0017980000 Other compounds containing sulfur and oxygen (persulfuric acids C01B0015060000; persulfates C01B0015080000) 1
C01B0019000000 Selenium; Tellurium; Compounds thereof 1
C01B0019020000 Elemental selenium or tellurium 1
C01B0019040000 Binary compounds 1
C01B0021000000 Nitrogen; Compounds thereof 1
C01B0021020000 Preparation of nitrogen (by decomposition of ammonia C01B0003040000) 1
C01B0021040000 Purification or separation of nitrogen (by liquefying F25J) 1
C01B0021060000 Binary compounds of nitrogen with metals, with silicon, or with boron 1
C01B0021064000 with boron 1
C01B0021068000 with silicon 1