Question

Hi can tell me what is the name of investor of speaker ​

Answer 1

Answer:

hi dear

Explanation:

Alexander Graham Bell patented his first electric loudspeaker (capable of reproducing intelligible speech) as part of his telephone in 1876, which was followed in 1877 by an improved version from Ernst Siemens

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Answer 2

Answer:

Alexander Graham Bell

good morning dear have a charming day a head . keep smile on your face dear. always be happy

May be this answer helps you!!!