Complete source list – Link #163: Electric Toothbrush Was First Marketed In 1939

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Complete source list – Link #163: Electric Toothbrush Was First Marketed In 1939

http://www.loc.gov/rr/scitech/mysteries/tooth.html
http://www.americanartifacts.com/smma/scott/scott.htm
http://www.americanartifacts.com/smma/scott/scott12.gif
http://www.americanartifacts.com/smma/scott/scott7.gif
http://en.wikipedia.org/wiki/Electric_toothbrush#History
http://inventors.about.com/od/dstartinventions/a/dentistry_2.htm
http://www.ehow.com/video_4738913_who-actually-invented-electric-toothbrush.html
http://www.identalhub.com/article_what-is-an-electric-toothbrush-305.aspx
http://www.ehow.com/about_4598206_who-invented-electric-toothbrush.html?ref=Track2&utm_source=ask
http://www.colgate.com/app/CP/US/EN/OC/Information/Articles/Oral-and-Dental-Health-Basics/Oral-Hygiene/Brushing-and-Flossing/article/History-of-Toothbrushes-and-Toothpastes.cvsp

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