Title De Forest Dynatherm. A Revelation in High Power Short and Ultra Short Wave Radio Therapy Emitters. Illustrating De Forest Bi-Wave Dynatherm with Adjustable Applicator Arms. [Together with] One sheet De Forest promotion of its Ultra-Violet Quartz Lamps, and also 5 typed page price sheet
Book Condition Very Good
Publisher Los Angeles and New York 1939
Seller ID 006011
4to. 28 by 21.5 cm. 12 pp., plus wraps. Many photographs of machinery, with also photo of De Forest, the famous inventor and self-described "Father of Radio". As well known as he was, OCLC shows no records of this brochure. This apparatus was created to apply radio technology in various medical treatments. Condition: light age toning on wraps.