Because he didn't! Alexander Graham Bell invented the telephone.
I don't think he did improve the telephone.
Alexander Graham Bell invented the Telephone to teach the deaf people to talk , and he has been reserching on sound for many years .
~ hope this can help you . :)
to improve communication
Alexander Graham Bell invented the telephone.
what is the passive voice of the alexander graham bell invented the telephone
Alexander Graham Bell invented the telephone.
Alexander Graham Bell invented the telephone.
Alexander Graham Bell invented the first telephone in New Haven,Connecticut
Alexander Graham Bell invented the telephone
Alexander graham bell invented the telephone and became famous for it
Alexander Graham Bell invented the telephone by accident. Not purposely.
Alexander Graham Bell invented the telephone in 1876. He was born in Scotland.
Alexander Graham Bell - invented the Telephone
Alexander Graham Bell.
Alexander Graham Bell invented the... - Telephone -and other stuff!