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Descrizione Inner workings of a "flip clock" where a digital display is driven by a system of gears and motors.
Data
Fonte http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=3220174
Autore E. Cappellari
Licenza
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United States Patent illustration


May or may not be in the public domain
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A portion of the disclosure of this patent document contains material which is subject to (copyright or mask work) protection. The (copyright or mask work) owner has no objection to the facsimile reproduction by any­one of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all (copyright or mask work) rights whatsoever.

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attuale20:39, 25 set 2006Miniatura della versione delle 20:39, 25 set 2006500 × 435 (51 KB)Epolk{{Information |Description=Inner workings of a "flip clock" where a digital display is driven by a system of gears and motors. |Source=http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=3220174 |Date=November 30, 1965 |Author=E. Cappellari |Permission

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