Automatic Telephone Exchange Patent Print
Patent No. US447918 · 1891
Invented by Almon B. Strowger
Vintage 1891 patent drawing of the automatic telephone exchange by Almon B. Strowger. Museum-quality archival giclée print.
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About This Print
Vintage 1891 patent drawing of the automatic telephone exchange by Almon B. Strowger. Museum-quality archival giclée print.
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