Comments on: Edison’s lesser-known inventions http://engtechmag.wordpress.com/2010/11/29/edisons-lesser-known-inventions/ The latest news and commentary on science, engineering and technology Tue, 21 May 2013 12:22:57 +0000 hourly 1 http://wordpress.com/ By: E&T magazine http://engtechmag.wordpress.com/2010/11/29/edisons-lesser-known-inventions/#comment-7950 Mon, 13 May 2013 09:20:26 +0000 http://engtechmag.wordpress.com/?p=807#comment-7950 Nice addition – thanks.

]]> By: Charyl Wallace http://engtechmag.wordpress.com/2010/11/29/edisons-lesser-known-inventions/#comment-7945 Sun, 12 May 2013 17:30:26 +0000 http://engtechmag.wordpress.com/?p=807#comment-7945 Time Magazine has an article that states this invention was the forrunner to the mineograph machine; it could make multiple copies.

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