Final answer:
Alexander Graham Bell is credited with inventing the first working telephone
Step-by-step explanation:
The scientist credited with inventing the first working telephone is Alexander Graham Bell. Bell patented his invention in 1876 and is widely recognized as the inventor of the telephone. He developed the telephone by building on the previous work of other inventors, and his version was the first to be practical and commercially successful. Bell's invention revolutionized communication, paving the way for the modern telephone systems we use today.
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