DIFF Subgroup
G01L 21/06 actuated by rotating or inverting the measuring device
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 > actuated by rotating or inverting the measuring device
No child classifications to compare. This is a leaf node in both IPC and CPC.