DIFF Subgroup
G01M 3/34 by testing the possibility of maintaining the vacuum in containers, e.g. in can-testing machines
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Investigating fluid tightness of structures > by using fluid or vacuum > by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors > for containers, e.g. radiators > by testing the possibility of maintaining the vacuum in containers, e.g. in can-testing machines
CPC:
Investigating fluid-tightness of structures > by using fluid or vacuum > by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors > for containers, e.g. radiators > by testing the possibility of maintaining the vacuum in containers, e.g. in can-testing machines
No child classifications to compare. This is a leaf node in both IPC and CPC.