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PCE
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DIFF Subgroup
G01L 21/04

wherein the chamber is closed by liquid; Vacuum gauges of the McLeod type

Introduced: September 1968

Full Title

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

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

Child Classifications

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  • G01L 21/06 actuated by rotating or inverting the measuring device IPC+CPC Available in IPC and CPC