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PCE
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DIFF Subgroup
F17D 5/04

by means of a signalling fluid enclosed in a double wall

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Protection or supervision of installations > Preventing, monitoring, or locating loss > by means of a signalling fluid enclosed in a double wall

CPC:

Protection or supervision of installations (arrangements for protecting foundations E02D31/00; protecting pipes from damage or internal or external wear F16L57/00, against corrosion and scale F16L58/00; investigation of the fluid-tightness of structures G01M3/00) > Preventing, monitoring, or locating loss > by means of a signalling fluid enclosed in a double wall

No child classifications to compare. This is a leaf node in both IPC and CPC.