ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
G01L0021280000 using torsional rotary measuring members 1
G01L0021300000 by making use of ionisation effects 1
G01L0021320000 using electric discharge tubes with thermionic cathodes 1
G01L0021340000 using electric discharge tubes with cold cathodes 1
G01L0021360000 using radioactive substances 1
G01L0023000000 Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid 1
G01L0023020000 mechanically indicating or recording and involving loaded or return springs 1
G01L0023040000 involving means subjected to known counteracting pressure 1
G01L0023060000 Indicating or recording by optical means 1
G01L0023080000 operated electrically 1
G01L0023100000 by pressure-sensitive members of the piezo-electric type 1
G01L0023120000 by changing capacitance or inductance 1
G01L0023140000 by electromagnetic elements 1
G01L0023160000 by photoelectric means 1
G01L0023180000 by resistance strain gauges 1