File:Gluehlampe Stopper-Konstruktion.jpg

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Gluehlampe_Stopper-Konstruktion.jpg (387 × 498 pixels, file size: 38 KB, MIME type: image/jpeg)

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Description
Deutsch: Zeichnung einer historischen Glühlampenkonstruktion mit Stopper-Design
Date
Source veröffentlichtes US-Patent 503.670 von 1893
Author WILLIAM EMERY NICKERSON

Licensing

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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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Transferred from de.wikipedia to Commons by Wdwdbot using CommonsHelper.

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  • 2007-11-30 12:59 Hgn-p 387×498× (38555 bytes) {{Information |Beschreibung = Zeichnung einer historischen Glühlampenkonstruktion mit Stopper-Design |Quelle = veröffentlichtes US-Patent 503.670 von 1883 |Urheber = |Datum = 22. August 1893 |Genehmigung = |Andere Versionen = |Anmerkungen = Die Konst

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current18:52, 2 April 2013Thumbnail for version as of 18:52, 2 April 2013387 × 498 (38 KB)File Upload Bot (Magnus Manske) (talk | contribs)Transfered from de.wikipedia by User:wdwdbot using CommonsHelper

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