File:Petran-Patent-Figure2.gif

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English: Page 2 from US Patent 3517980 filed in 1967, granted 1970-06-30
Deutsch: Seite aus dem US Patent 3517980 beantragt 1967, zugeteilt 1970-06-30. 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.
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Source US-Patent 3517980 at Google Patents [1]
Author Mojmír Petráň, Milan Hadravsky
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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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current20:50, 15 November 2012Thumbnail for version as of 20:50, 15 November 20122,320 × 3,408 (112 KB)Dietzel65 (talk | contribs){{Information |Description ={{en|1=Page 2 from US Patent 3517980 filed in 1967, granted 1970-06-30}} {{de|1=Seite aus dem US Patent 3517980 beantragt 1967, zugeteilt 1970-06-30. 1: Nipkow-Scheibe. 2, 5: Umkehrsystem. 3, 10, 11, 12, 19, 20, 21: Spi...

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