High frequency "violet ray" electrotherapy apparat

Made:
1925-1940

High frequency "violet ray" electrotherapy apparatus with three electrodes, English, 1925-1940

Details

Category:
Dentistry
Object Number:
1980-158
Materials:
body, vulcanite, electrodes, brass and electrodes, glass
type:
high frequency apparatus and high frequency apparatus and
credit:
Austin, M.W.