ผลต่างระหว่างรุ่นของ "อัลเฟรด เวล"

</ref><ref>[http://www.telegraph-office.com/pages/vail.html]</ref><ref>{{cite news |first=Edward Lind |last=Morse |authorlink= |coauthors= |title=Defends His Father's Claim to Paternity of the Telegraph. |url=http://query.nytimes.com/mem/archive-free/pdf?res=9502EFD6103BE631A25752C2A9609C946597D6CF |quote=My attention has been called to a communication in [[The New York Times]] of June 7 headed "Vail, Father of the Telegraph," and signed Stephen Vail. While I have no desire to enter into a newspaper controversy with Mr. Vail, and while I am sure that you have no desire to encourage one, I trust in justice to my father, Samuel F.B. Morse, you will allow me a few words in reply. |publisher=[[New York Times]] |date=June 21, 1904, Tuesday |accessdate=2007-07-21 | format=PDF}}</ref>

<ref>{{cite news |first=Stephen |last=Vail |authorlink= |coauthors= |title=VAIL-MORSE CONTROVERSY.; Stephen Vail on His Father's Claim to Telegraph Invention. |url=http://query.nytimes.com/mem/archive-free/pdf?res=9801E7DD113DE633A25753C3A9609C946597D6CF |quote=Alfred Vail ... invented the new "recording receiver," "the sounding key," and the "dot-and-dash" alphabet...but doing his duty in strict accordance with his understanding of the terms of his contract, and that to Morse belonged all the he had accomplished. |publisher=[[New York Times]] |date=June 25, 1904, Tuesday |accessdate=2009-12-22 | format=PDF}}</ref>