File:Braunsche Telegraphiesystem 1898.jpg

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Summary

Description
Deutsch: Schaltungsprinzip von Funkensender und Empfänger nach Braun 1898
Date
Source [1]
Author Karl Ferdinand Braun (* 6. Juni 1850 in Fulda; † 20. April 1918 in New York)
Permission
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Public domain

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You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.
 Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Jamaica has 95 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Honduras has a general copyright term of 75 years, but it does implement the rule of the shorter term. Copyright may extend on works created by French who died for France in World War II (more information), Russians who served in the Eastern Front of World War II (known as the Great Patriotic War in Russia) and posthumously rehabilitated victims of Soviet repressions (more information).
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.
Other versions Im Magazin des Museums für Kommunikation (früher Bundespostmuseum), bei Frankfurt/M, befinden sich je ein Original Funkensender und ein Original Sekundärempfänger

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checksum

6fb6ef20e058dccd487bf78e55dc2f6ec0611c1e

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Date/TimeThumbnailDimensionsUserComment
current11:31, 11 September 2014Thumbnail for version as of 11:31, 11 September 20142,377 × 1,350 (318 KB)wikimediacommons>Drdoht== {{int:filedesc}} == {{Information |Description= {{de|1=Schaltungsprinzip von Funkensender und Empfänger nach Braun 1898}} |Source=[http://www.radiomuseum.org/r/gesells_dr_sekundaerempfaenger_syste.html] |Author=Karl Ferdinand Braun (* 6. Juni 1850...

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