2 ms·
Earlier phone patents http://en.wikipedia.org/wiki/Invention_of_the_telephone#Patents http://en.wikipedia.org/wiki/Invention_of_the_telephone#Pate... and previ
by 6ren 15y ago
Earlier phone patents
http://en.wikipedia.org/wiki/Invention_of_the_telephone#Patents http://en.wikipedia.org/wiki/Invention_of_the_telephone#Pate...
and previous disputes http://www.sparknotes.com/biography/edison/section4.rhtml http://www.sparknotes.com/biography/edison/section4.rhtml