using a reference pattern designed for the purpose, e.g. a test chart

Full Title

Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof > Diagnosis, testing or measuring; Detecting, analysis or monitoring not otherwise provided for > Method used > using a reference pattern designed for the purpose, e.g. a test chart

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.

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