A61N 7/022 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

A61N 7/022

Full Title

Ultrasound therapy (lithotripsy A61B17/22, A61B17/225; massage using supersonic vibration A61H23/00 ) > Localised ultrasound hyperthermia

This code exists only in CPC.

Diff view requires codes present in both systems.