Andy Wright's visit to the Howard Raper archive!
Andy is the Great Grandson of X-Ray Pioneer Edwin Lee Edwards
The Turn Of The Century Electrotherapy Museum - http://www.electrotherapymuseum.com
1915 - 1916 Wappler - Michigan Dental Journal 1915-1916
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Dental Facts Jul 1919 v 7 no 44 -- thwaites
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