ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
F23M0003000000 Firebridges 1
F23M0003020000 modified for circulation of fluids, e.g. air, steam, water 1
F23M0003040000 for delivery of gas, e.g. air, steam 1
F23M0003060000 into or towards fire 1
F23M0003080000 away from fire, e.g. towards smoke outlet 1
F23M0003100000 transversely 1
F23M0003120000 characterised by shape or construction (F23M0003020000 takes precedence);; 1
F23M0003140000 with apertures for passage of combustion products 1
F23M0003160000 built-up in sections, e.g. using bars or blocks 1
F23M0003180000 double; multiple 1
F23M0003200000 comprising loose refractory material, wholly or in part 1
F23M0003220000 movable; adjustable 1
F23M0005000000 Casings; Linings; Walls (construction or support of tube walls for steam boilers F22B) 1
F23M0005020000 characterised by the shape of the bricks or blocks used (ceramic materials C04B0033000000, C04B0035000000) 1
F23M0005040000 Supports for linings 1