ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
E03B0003150000 Keeping wells in good condition, e.g. by cleaning, repairing, regenerating; Maintaining or enlarging the capacity of wells or water-bearing layers (with artificial enrichment E03B0003320000) 1
E03B0003160000 Component parts of wells 1
E03B0003180000 Well filters (filters in general B01D0024000000-B01D0035000000) 1
E03B0003200000 of elements of special shape 1
E03B0003220000 Selection of specified materials 1
E03B0003240000 formed of loose materials, e.g. gravel 1
E03B0003260000 with packed filtering material 1
E03B0003280000 from humid air (condensing of vapours in general B01D0005000000; dehumidification of air for air-conditioning F24F0003140000) 1
E03B0003300000 from snow or ice 1
E03B0003320000 with artificial enrichment, e.g. by adding water from a pond or a river 1
E03B0003340000 of underground water 1
E03B0003360000 of surface water 1
E03B0003380000 Curbs for springs 1
E03B0003400000 Other devices for confining, e.g. trenches, drainage 1
E03B0005000000 Use of pumping plants or installations; Layouts thereof (pumps, pumping plants or installations per se, F04) 1