దస్త్రం:QWERTY 1878.png

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QWERTY_1878.png (330 × 211 పిక్సెళ్ళు, ఫైలు పరిమాణం: 22 KB, MIME రకం: image/png)

hanumantharaya

సారాంశం

వివరణ
English: QWERTY typewriter key layout depicted in U.S. Patent No. 207,559, issued August 27, 1878 to Christopher Sholes.
తేదీ
మూలం U.S. Patent No. 207,559
కర్త C.L. Sholes

లైసెన్సింగ్

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ప్రస్తుత17:27, 23 జూలై 200817:27, 23 జూలై 2008 నాటి కూర్పు నఖచిత్రం330 × 211 (22 KB)PHenry{{Information |Description={{en|1=QWERTY typewriter key layout depicted in U.S. Patent No. 207,559, issued August 27, 1878 to Christopher Sholes.}} |Source=U.S. Patent No. 207,559 |Author=[[w:Christopher Sholes|C.L. S

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