ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
G01L0019160000 Dials; Mounting of dials 1
G01L0021000000 Vacuum gauges 1
G01L0021020000 having a compression chamber in which gas, whose pressure is to be measured, is compressed 1
G01L0021040000 wherein the chamber is closed by liquid; Vacuum gauges of the McLeod type 1
G01L0021060000 actuated by rotating or inverting the measuring device 1
G01L0021080000 by measuring variations in the transmission of acoustic waves through the medium, the pressure of which is to be measured 1
G01L0021100000 by measuring variations in the heat conductivity of the medium, the pressure of which is to be measured 1
G01L0021120000 measuring changes in electric resistance of measuring members, e.g. of filaments; Vacuum gauges of the Pirani type 1
G01L0021140000 using thermocouples 1
G01L0021160000 by measuring variation of frictional resistance of gases 1
G01L0021180000 using a pendulum 1
G01L0021200000 using members oscillating about a vertical axis 1
G01L0021220000 using resonance effects of a vibrating body; Vacuum gauges of the Klumb type 1
G01L0021240000 using rotating members; Vacuum gauges of the Langmuir type 1
G01L0021260000 by making use of radiometer action, i.e. of the pressure caused by the momentum of molecules passing from a hotter to a cooler member; Vacuum gauges of the Knudsen type 1