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  The Alarm, Sensor & Security Circuit Cookbook - Thomas Petruzzellis - Google Books

  http://books.google.de/books?id=RM2lEleKFAwC&pg=PA127

  This text is aimed at technicians, hobbyists, and students and provides complete circuit diagrams and building instructions for a wide range of creative sleuthing applications. The designs are fully tested and proven effective in real-world alarm, sensor,…

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  Bergholt Stuttley Johnson - DiscWiki

  http://www.thediscworld.de/index.php/Bergholt_Stuttley_Johnson

  Keine Beschreibung vorhanden.

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  Diskussion:Mao Zedong – Wikiquote

  https://de.wikiquote.org/wiki/Diskussion:Mao_Zedong

  Keine Beschreibung vorhanden.

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