File:Coherer Rcvr.jpg

Original file (865 × 664 pixels, file size: 46 KB, MIME type: image/jpeg)

Summary

Description
Deutsch: Fritter
Date
Source "Elements of Radiotelegraphy", published in USA 1922 First upload: en:Image:Coherer Rcvr.jpg
Author Unknown authorUnknown author

Licensing

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}}.

Original upload log

Transferred from de.wikipedia to Commons by Wdwdbot using script bot_filetrans.pl (r46M).

The original description page was here. All following user names refer to de.wikipedia.
  • 2008-10-30 19:15:03 Biezl (47206 Bytes) {{Information |Beschreibung = [[Fritter]] |Quelle = [[:en:Image:Coherer Rcvr.jpg]] |Urheber = unknown |Datum = 1923 |Genehmigung = |Andere Versionen = |Anmerkungen = }} {{Schöpfungshöhe}}

Captions

Diagram of Guglielmo Marconi's first radio receiver from 1896

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image/jpeg

1cd0de5769c1dc96fdda822c1343de47b1e13520

47,206 byte

664 pixel

865 pixel

File history

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Date/TimeThumbnailDimensionsUserComment
current20:24, 14 March 2016Thumbnail for version as of 20:24, 14 March 2016865 × 664 (46 KB)WdwdbotBot Move: Original uploader of this revision (#1) was Biezl at de.wikipedia

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