Patent classifications
A
HUMAN NECESSITIES
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A61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
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A61N
ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
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1/00
Electrotherapy; Circuits therefor
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A61N1/40
Applying electric fields by inductive or capacitive coupling; ;; Applying radio-frequency signals
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A61N1/403
for thermotherapy, e.g. hyperthermia
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