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Description
English: Part of Page 2 from US Patent 3517980 filed in 1967, granted 1970-06-30. Red bar added to indicate the Nipkow-Disk.
Deutsch: Teil der Seite 2 aus dem US Patent 3517980 beantragt 1967, zugeteilt 1970-06-30. Roter Balken nachträglich eingezeichnet um die Nipkow-Scheibe zu markieren. 1: Nipkow-Scheibe. 2, 5: Umkehrsystem. 3, 10, 11, 12, 19, 20, 21: Spiegel. 4: Objektiv. 6: Schärfeebene. 13: Okular. 14: Achse der Nipkow-Scheibe. 16: Gehäuse. 17: Elektrischer Motor für die Scheibe. 18: Transmissionssystem.
Date
Source US-Patent 3517980 at Google Patents [1]
Author Mojmír Petráň, Milan Hadravsky
Permission
(Reusing this file)
Public domain The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)

The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}.

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Date/TimeThumbnailDimensionsUserComment
current20:16, 24 July 2015Thumbnail for version as of 20:16, 24 July 20151,482 × 1,819 (53 KB)CmdrjamesonCompressed with pngout. Reduced by 45kB (46% decrease).
21:14, 15 November 2012Thumbnail for version as of 21:14, 15 November 20121,482 × 1,819 (99 KB)Dietzel65{{Information |Description ={{en|1=Part of Page 2 from US Patent 3517980 filed in 1967, granted 1970-06-30. Red bar added to indicate the Nipkow-Disk. }} {{de|1=Teil der Seite 2 aus dem US Patent 3517980 beantragt 1967, zugeteilt 1970-06-30. Roter B...

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