A. E. DolbearA. E. Dolbear (1837-1910) was an American physicist and inventor known for his work in the field of telephony. His contributions to the understanding of electricity, magnetism, and sound laid the foundation for advancements in communication technolog. Dolbear's innovative experiments and inventions, including the construction of a speaking-telephone, have had a lasting impact on the development of telephonic devices and systems. Read More Read Less