What new type of telephone switchboard involved replacing the subscribers' names with numbers for the operators by the early 1890s?
#65732. Asked by PrincessJoey. (May 15 06 7:50 AM)
The Strowger Switch
Convinced that subscribers should choose who was called, rather than the operator, he first conceived his invention in 1888, and patented the automatic telephone exchange in 1891. It is reported that he initially constructed a model of his invention from a round collar box and some straight pins. http://en.wikipedia.org/wiki/Strowger_switch
May 15 06, 8:13 AM
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