File:Tapping coherer.jpg: Difference between revisions

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imported>Caesar Schinas
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(== Summary == Importing file)
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== Summary ==
== Summary ==
   
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{{Image_Details
| description  = Drawing of a tapping filings-coherer radio detector.
| author      = "The Electrical Experimenter" (Commercial publication.)
| copyright    = "The Electrical Experimenter" (Commercial publication.)
| source      = Appeared as an illustration in the article "Radio Detector Development" by H. Winfield Secor, published in the January, 1917 issue of "The Electrical Experimenter".
| date-created = Estimated: [1917]
| pub-country  =
| notes        =
| versions    =
}}
 
== Licensing/Copyright status ==
"See licensing data below" (This illustration was published in the United States prior to January 1, 1923)
 
 
== Licensing/Copyright status ==
{{PD}}

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