using chemical indicators (G01N31/02 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: using chemical indicators

CPC: using chemical indicators (G01N31/02 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroups; Apparatus specially adapted for such methods > using chemical indicators

CPC:

Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods > using chemical indicators (G01N31/02 takes precedence)

Of 7 combined children, 0 exist in both systems.

7 codes are CPC-only extensions.

Child Classifications

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G01N 31/221 CPC only CPC only
G01N 31/222 CPC only CPC only
G01N 31/223 +2 CPC CPC only CPC only
G01N 31/226 CPC only CPC only
G01N 31/227 CPC only CPC only
G01N 31/228 CPC only CPC only
G01N 31/229 CPC only CPC only