G01N 2001/222 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup Additional Only

G01N 2001/222

Full Title

Sampling; Preparing specimens for investigation > Devices for withdrawing samples > in the gaseous state

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.

This code exists only in CPC.

Diff view requires codes present in both systems.