Rotary system
The Rotary Machine Switching System, or most commonly known as the Rotary System, was a type of automatic telephone exchange manufactured and used primarily in Europe from the 1910s. Formally named the No. 7-A Machine Switching System, it was developed in Belgium by International Western Electric, a subsidiary of American Telephone and Telegraph (AT&T), at the same time when AT&T's American engineering division, Western Electric, was developing the Panel switch in the United States.
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Rotary system
The Rotary Machine Switching System, or most commonly known as the Rotary System, was a type of automatic telephone exchange manufactured and used primarily in Europe from the 1910s. Formally named the No. 7-A Machine Switching System, it was developed in Belgium by International Western Electric, a subsidiary of American Telephone and Telegraph (AT&T), at the same time when AT&T's American engineering division, Western Electric, was developing the Panel switch in the United States.
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Rotary es un sistema de conmut ...... conmutador de barras cruzadas.
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The Rotary Machine Switching S ...... system had the designation 7D.
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17,248,101
Wikipage revision ID
742,222,876
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Rotary es un sistema de conmut ...... sistemas Rotary fueron varias:
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The Rotary Machine Switching S ...... l switch in the United States.
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Rotary system
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Sistema de conmutación Rotary
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