ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
H01J0041000000 Discharge tubes and means integral therewith for measuring gas pressure; Discharge tubes for evacuation by diffusion of ions 1
H01J0041020000 Discharge tubes and means integral therewith for measuring gas pressure 1
H01J0041040000 with ionisation by means of thermionic cathodes 1
H01J0041060000 with ionisation by means of cold cathodes 1
H01J0041080000 with ionisation by means of radioactive substances, e.g. alphatrons 1
H01J0041100000 of particle-spectrometer type (particle spectrometers in general H01J0049000000) 1
H01J0041120000 Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps 1
H01J0041140000 with ionisation by means of thermionic cathodes 1
H01J0041160000 using gettering substances 1
H01J0041180000 with ionisation by means of cold cathodes 1
H01J0041200000 using gettering substances 1
H01J0043000000 Secondary-emission tubes; Electron-multiplier tubes (dynamic electron-multiplier tubes H01J0025760000) 1
H01J0043020000 Tubes in which one or a few electrodes are secondary-electron-emitting electrodes 1
H01J0043040000 Electron multipliers 1
H01J0043060000 Electrode arrangements 1