Amos Dolbear
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Amos Emerson Dolbear (November 10, 1837–February 23, 1910) was an American inventor. His patents interfered with Guglielmo Marconi's planned activities in the US.
He invented the first telephone receiver with a permanent magnet in 1865, 11 years before Alexander Graham Bell patented his model. Later, Dolber couldn't prove his claim, so Bell kept the patent.
Dolbear was a graduate of Ohio Wesleyan University, in Delaware, Ohio.
External links
- Amos Dolbear, Tufts faculty as of 1874 (http://www.tufts.edu/source/timeline/html/1874-p-amos.html)
- Just Who Did Invent Radio? (http://www.qsl.net/km5kg/marconi.htm)
- Roxbury's Professor Dolbear (http://www.hsccnh.org/mm/mm076.cfm)