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| Strowger return |
| Bibliography |
Almon Brown Strowger |
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1891
Automatic telephone switching
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Penfield,
New York February.11.1839- St. Petersburg, Pinellas County,
Florida May
26.1902
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Documents
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| Patent USA 447.918 Automatic telephone exchange 10 marzo 1891 | |||||
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Short biographical chronology | ||||
| 1839 | It is born to Penfield, New York | ||||
| 1891 | 10 March obtains the Automatic licence telephone exchange | ||||
| 1902 | 26 May Dies to St. Petersburg, Pinellas County, buried Florida and ivi | ||||