ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
F22D0005340000 Applications of valves (valves per seF16K) 1
F22D0005360000 for feeding a number of steam boilers designed for different ranges of temperature and pressure 1
F22D0007000000 Auxiliary devices for promoting water circulation (adaptation of boilers for promoting water circulation F22B0037340000) 1
F22D0007020000 Saddles or like directing plates fitted to furnace tubes 1
F22D0007040000 Injectors for water or steam 1
F22D0007060000 Rotary devices, e.g. propellers 1
F22D0007080000 Arrangements of pumps, e.g. outside the boilers 1
F22D0007100000 within the boilers 1
F22D0007120000 Control devices 1
F22D0007140000 specially adapted for locomotive boilers 1
F22D0011000000 Feed-water supply not provided for in other main groups 1
F22D0011020000 Arrangements of feed-water pumps (F22D0011060000 takes precedence;pumps per seF04) 1
F22D0011040000 with means to eliminate steam formation 1
F22D0011060000 for returning condensate to boiler 1
F22G SUPERHEATING OF STEAM (steam-separating arrangements in boilers F22B0037260000;  removal of combustion products or residues, e.g. cleaning of the combustion contaminated surfaces of tubes of boilers, F23J0003000000) 1