ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
D21B0001300000 Defibrating by other means 1
D21B0001320000 of waste paper 1
D21B0001340000 Kneading or mixing; Pulpers 1
D21B0001360000 Explosive disintegration by sudden pressure reduction 1
D21B0001380000 Conserving the finely-divided cellulosic material 1
D21C PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR 1
D21C0001000000 Pretreatment of the finely-divided materials before digesting (of waste paper D21C0005020000) 1
D21C0001020000 with water or steam 1
D21C0001040000 with acid reacting compounds 1
D21C0001060000 with alkaline reacting compounds 1
D21C0001080000 with oxygen-generating compounds 1
D21C0001100000 Physical methods for facilitating impregnation 1
D21C0003000000 Pulping cellulose-containing materials 1
D21C0003020000 with inorganic bases or alkaline reacting compounds, e.g. sulfate processes 1
D21C0003040000 with acids, acid salts, or acid anhydrides 1