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On This Day in Telephone History March 10TH 1891 Almon B. Strowger was granted Patent No. 447,918 for the Strowger Machine-Switching System

On This Day in Telephone History March 10TH 1891

March 10, 2025 by The Telephone Museum
On This Day in Telephone History March 10TH 1891 Almon B. Strowger was granted Patent No. 447,918 for the Strowger Machine-Switching System
Categories On This Day Tags OnThisDay, OTD, TelephoneHistory, TheTelephoneMuseum
On This Day in Telephone History March 9TH 1965
On This Day in Telephone History March 11TH 1957
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