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DIFF Subgroup
G01N 21/94

Investigating contamination, e.g. dust (G01N21/85 takes precedence)

Introduced: January 2000

Title

Titles differ between systems:

IPC: Investigating contamination, e.g. dust

CPC: Investigating contamination, e.g. dust (G01N21/85 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 > Investigating contamination, e.g. dust

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 > Investigating contamination, e.g. dust (G01N21/85 takes precedence)

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

Child Classifications

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