G01L21/04 - CPC Classification Index

ClassID:

166880 ⎘

G01L21/04 - CPC Classification

Classification description:

Vacuum gauges having a compression chamber in which gas, whose pressure is to be measured, is compressed wherein the chamber is closed by liquid; Vacuum gauges of the McLeod type

Sub-classes:

G01L21/06 » actuated by rotating or inverting the measuring device 1

Recent Application in this class:

20110182438

2011-07-28

Masker sound generation apparatus and program