Early beginnings of Northwestern Bell

From Revolvy.com – Early beginnings of Northwestern Bell

1897 map of service area

It has never been definitively established where Northwestern Bell’s earliest roots lie. The earliest record of telephones in the Northwestern Bell service area was a two-telephone intercom circuit used by a Little Falls, Minnesota druggist and his clerk in 1876.   A Bell-licensed exchange is believed to have opened in Deadwood, South Dakota between March and August 1878….

Full article at Revolvy.comhttps://www.revolvy.com/topic/Northwestern%20Bell&item_type=topic

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