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Type the correct answer in the box. Spell all words correctly. Which type of electronic communication device did people use before Alexander Graham Bell introduced the first practical telephone?
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Type the correct answer in the box. Spell all words correctly.

Which type of electronic communication device did people use before Alexander Graham Bell introduced the first practical telephone?

Type the correct answer in the box. Spell all words correctly. Which type of electronic-example-1
User Muhan
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4 votes

Answer:

Telegraph

Step-by-step explanation:

Graham bell patent the Telegraph in 1876

User Pinko
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