Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subgroup
G01L 21/24

using rotating members; Vacuum gauges of the Langmuir type

Introduced: September 1968

Last revised: January 2006

Full Title

Vacuum gauges > by measuring variation of frictional resistance of gases > using rotating members; Vacuum gauges of the Langmuir type

Classification Context

Section:
PHYSICS
Class:
MEASURING; TESTING
Subclass:
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE