
The first experimental telephone exchange was based on the ideas of Tividar Puskás, and it was built by the Bell Telephone Company in Boston in 1877. He would go on to improve upon his invention, developing the multiplex switchboard.
The first experimental telephone exchange was based on the ideas of Tividar Puskás, and it was built by the Bell Telephone Company in Boston in 1877. He would go on to improve upon his invention, developing the multiplex switchboard.
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