in a container or its contents (G01N21/91 takes precedence)

Introduced: January 1980

Title

Titles differ between systems:

IPC: in a container or its contents

CPC: in a container or its contents (G01N21/91 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light > Systems specially adapted for particular applications > Investigating the presence of flaws, defects or contamination > in a container or its contents

CPC:

Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light (G01N3/00 - G01N19/00 take precedence) > Systems specially adapted for particular applications > Investigating the presence of flaws or contamination > in a container or its contents (G01N21/91 takes precedence)

Of 9 combined children, 0 exist in both systems.

9 codes are CPC-only extensions.

Child Classifications

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G01N 2021/9063 2nd only CPC only CPC only
G01N 21/9009 CPC only CPC only
G01N 21/9018 +1 CPC CPC only CPC only
G01N 21/9036 CPC only CPC only
G01N 21/9045 CPC only CPC only
G01N 21/9054 CPC only CPC only
G01N 21/9072 CPC only CPC only
G01N 21/9081 CPC only CPC only
G01N 21/909 CPC only CPC only