Campbell X-ray and high-frequency apparatus is the standard of the world : it has no peer.

  • Campbell Electric Company (Lynn, Mass.)
Date:
[1911], ©1911
Catalogue details

Licence: Public Domain Mark

Credit: Campbell X-ray and high-frequency apparatus is the standard of the world : it has no peer. Source: Wellcome Collection.

Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.

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    Frequency currents have been employed with success, see our booklet entitled Practical Electro-Therapeutics which has been compiled from actual reports of cases. This book- let lists diseases alphabetically, with suggestions for proper methods of current application. Also explains how to secure best results in Radiography. Free on request. MODERN OFFICE EQUIPMENT OUTFIT NUMBER SIX See Page 10